| Record Number | Keyword(s) | Country | Catalog Listed? | Continent | |
| 2301 | S (overprint on stamps of Straits Settlements) | Malaya- Selanegor (1879-91). | Real | Asia |  |
| 2302 | S F (overprint) | Denmark, military stamps [Soldater Frimaerke (Soldiers Stamp)]. | Real | Europe |  |
| 2303 | S U (overprint on stamps of Strait Settlements) | Malaya- Sungei Ujong (1878-91). | Real | Asia |  |
| 2304 | S UJONG (overprint on stamps of Strait Settlements) | Malaya- Sungei Ujong (1891-4). | Real | Asia |  |
| 2305 | S. (overprint) | South Australia, officials (1868-74) [Sheriff]. | Real | Australia |  |
| 2306 | S. C. (overprint) | South Australia, officials (1868-74) [Supreme Court]. | Real | Australia | |
| 2307 | S. G. (overprint) | South Australia, officials (1868-74) [Surveyor General]. | Real | Australia | |
| 2308 | S. M. (overprint) | South Australia, officials (1868-74) [Stipendiary Magistrate]. | Real | Australia | |
| 2309 | S. MARINO | San Marino. | Real | Europe |  |
| 2310 | S. T. (overprint) | South Australia, officials (1868-74) [Superintendent of Telegraph]. | Real | Australia | |
| 2311 | S. THOME E PRINCIPE | St. Thomas & Prince Islands. | Real | Americas | |
| 2312 | S. TOME E PRINCIPE | St. Thomas & Prince Islands. | Real | Americas | |
| 2313 | S.A. | Saudi Arabia. | Real | Asia |  |
| 2314 | S.A.I.D.E. (overprint) | Egypt, airmails [Services Ariens Internationalaux d Egypte]. | Real | Africa | |
| 2315 | S.A.K. | Saudi Arabia. | Real | Asia | |
| 2316 | S.C.A.D.A. | Colombia- South American airline private stamps [Sociedad Colombia Alleman de Transportes Aereos]. | Real | Americas |  |
| 2317 | S.d.N. BUREAU INTERNATIONALE DU TRAVAIL (overprint) | Switzerland, officials, Int. Labor Bureau. | Real | Europe |  |
| 2318 | S.G. (overprint) | Sudan, officials [Sudan Government]. | Real | Africa | |
| 2319 | S.H.S. | Yugoslavia (1918-20) [Srbska, Hrvatska, Slovenska (Serbo-Croat-Slovenian Kingdom)]. | Real | Europe | |
| 2320 | S.H.S. (overprint) | Hungary- Yugoslavia- Croatia-Slovenia. | Real | Europe | |
| 2321 | S.O. (overprint) | Hong Kong, intended for revenue but postally used during a shortage (1882) [Stamp Office]. | Real | Asia | |
| 2322 | S.O. 1920 (overprint on stamps of Czechoslovakia) | Eastern Silesia (1920) [Silesie Orientale]. | Real | Asia |  |
| 2323 | S.Q. TRSTA-VUJA | Yugoslavia Zone B- Trieste. | Real | Europe | |
| 2324 | S.Q. TRSTA-VUJA ZRACNA P | Yugoslavia Zone B- Trieste, airmails (1949). | Real | Europe | |
| 2325 | S.R.M. (currency) | German States- Holstein [Skilling Reichs Munze]. | Real | Europe | |
| 2326 | S.T. TRSTA-VUJA | Yugoslavia Zone B- Trieste. | Real | Europe | |
| 2327 | S.T.T. VUJA (overprint on stamps of Yugoslavia) | Yugoslavia Zone B- Trieste. | Real | Europe |  |
| 2328 | S.T.T.-V.U.J.N.A. (overprint on stamps of Yugoslavia) | Yugoslavia Zone B- Trieste. | Real | Europe |  |
| 2329 | S.W.A. | South West Africa. | Real | Africa |  |
| 2330 | S.W.A. (overprint on stamps of South Africa) | South West Africa. | Real | Europe |  |
| 2331 | SAARE (overprint on stamps of Bavaria) | Saar (1920). | Real | Europe |  |
| 2332 | SAARE (overprint on stamps of Germany) | Saar (1920). | Real | Europe |  |
| 2333 | SAARGEBIET | Saar (1920-34). | Real | Europe |  |
| 2334 | SAARGEBIET LUFTPOST | Saar, airmails. | Real | Europe |  |
| 2335 | SAARGEBIET VOLKSHILFE | Saar, semipostals. | Real | Europe |  |
| 2336 | SAARLAND | Saar (1957-9). | Real | Europe |  |
| 2337 | SAARPOST | Saar (1948). | Real | Europe |  |
| 2338 | SABAH (overprint on stamps of North Borneo) | Sabah (1964). | Real | Europe |  |
| 2339 | SABMI | Lapland. | Not Scott Listed | None | |
| 2340 | SABOT | Donald Evans issue, Dutch. | Not Scott Listed | Europe | |
| 2341 | SACHEN | German States- Saxony. | Real | Europe | |
| 2342 | SACHSEN | German States- Saxony. | Real | Europe |  |
| 2343 | SAGGIO (overprint) | Italy [Specimen or Proof]. | Real | Europe |  |
| 2344 | SAHA, SAHA-YAKUTIA | Bogus Russian local overprint. | Not Scott Listed | Asia | |
| 2345 | SAHARA ESPANOL | Spanish Sahara. | Real | Africa |  |
| 2346 | SAHARA OCCIDENTAL | Spanish Sahara. | Real | Africa |  |
| 2347 | SAHARA, EMPIRE OF | West Coast of Africa strip of land between Cape Bojador and Cape Juby in 1907. | Not Scott Listed | Africa | |
| 2348 | SAINT HELENA TRISTAN RELIEF (overprint) | St. Helena, semipostal for Tristan da Cunha (1961). | Real | Europe |  |
| 2349 | SAINT PIERRE ET MIQUELON | St. Pierre & Miquelon. | Real | Africa |  |
| 2350 | SAINT PIERRE M-ON (overprint on stamps of French Colonies) | St. Pierre & Miquelon. | Real | Africa | |
| 2351 | SALONICCO (overprint on stamps of Italy) | Italy- Offices in Turkey- Salonika (1909-11). | Real | Europe |  |
| 2352 | SALONIKA (overprint on stamps of Italy) | Italy- Offices in Turkey- Salonika (1909-11). | Real | Europe | |
| 2353 | SALONIQUE (overprint on stamps of Russia) | Russia- Offices in Turkey (1909-10). | Real | Asia |  |
| 2354 | SALVE HOSPES | Netherlands, semipostals for national tourist association. | Real | Europe |  |
| 2355 | SAMOA (overprint on stamps of Germany) | Samoa (1900). | Real | Australia |  |
| 2356 | SAMOA (without WESTERN on stamps of New Zealand) | Samoa (1914-34). | Real | Australia |  |
| 2357 | SAMOA I SISIFU | Western Samoa (1958). | Real | Australia |  |
| 2358 | SAMOS | Greek island, various emissions. | Not Scott Listed | Europe | |
| 2359 | SANDA ISLAND | Island off the coast of Scotland with labels bearing its name. | Not Scott Listed | None |  |
| 2360 | SANDJAK D'ALEXANDRETTE (overprint on stamps of Syria) | Alexandretta. | Real | Africa |  |
| 2361 | SANDZAK | Jugoslavia. | Not Scott Listed | Europe |  |
| 2362 | SANITORIUM | Dominican Republic, semipostals. | Real | Americas | |
| 2363 | SANS DINERO | Bogus country in South America. | Not Scott Listed | Americas | |
| 2364 | SANTA LANDIA | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | Americas | |
| 2365 | SANTANDER | Colombia- Santander. | Real | Americas |  |
| 2366 | SANTAVAKIA | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | None | |
| 2367 | SANTI QUARANTA | Epirus port bogus overprint on stamps of Italy in 1914. | Not Scott Listed | Europe |  |
| 2368 | SAORSTAT EIREANN (overprint on stamps of Great Britain) | Ireland (1922-3) [Free State of Ireland]. | Real | Europe |  |
| 2369 | SAR | Sytia 1961-present | Real | Europe | |
| 2370 | SARAFOU, PRINCIPALITY OF | Three islands issued labels, 175 leagues from the Phoenix Islands. | Not Scott Listed | None | |
| 2371 | SARDIN' ISLAND | Swiss origin fantasy. | Not Scott Listed | Europe | |
| 2372 | SARKARI | India- Soruth. | Real | Asia |  |
| 2373 | SARRE (overprint on stamps of Germany) | Saar (1920) | Real | Europe |  |
| 2374 | SASENO (overprint on stamps of Italy) | Saseno (1923) | Real | Asia |  |
| 2375 | SAURASHTRA | India- Soruth (1929-49). | Real | Asia |  |
| 2376 | SAVAGE REPUBLIC | Rock band labels. | Not Scott Listed | None | |
| 2377 | SAVENTHEM | Belgian church fair label. | Not Scott Listed | Europe | |
| 2378 | SCARPANTO (overprint on stamps of Italy) | Italy- Aegean Islands- Scarpanto (1912-32). | Real | Europe |  |
| 2379 | SCH. (currency) | German States [Schilling]. | Real | Europe | |
| 2380 | SCHLESWIG | German States- Schleswig-Holstein (1864-5). | Real | Europe | |
| 2381 | SCINDE DISTRICT DAWK | India (1852). | Real | Asia |  |
| 2382 | SCOUTS FUND (overprint) | Siam, semipostals. | Real | Asia | |
| 2383 | SCUDO (currency) | Italian States- Roman States (1852). | Real | Europe | |
| 2384 | SCUTARI DI ALBANIA (overprint on stamps of Italy) | Italy- Offices in Turkey- Scutari (1909-16). | Real | Asia |  |
| 2385 | SEALAND | Abandoned WVV II concrete platform made into kingdom. | Not Scott Listed | None |  |
| 2386 | SEBORGA | "Independent" principality in Liguria, Italy. | Not Scott Listed | None |  |
| 2387 | SECOURS (with Arabic inscription) | Saudi Arabia, postal tax stamps [Relief]. | Real | Asia |  |
| 2388 | SECOURS AUX REFUGIES (overprint) | Syria, semipostal [Relief for Refugees. | Real | Asia |  |
| 2389 | SECOURS AUX VICTIMS DE LA GUERRE | Haiti, postal tax stamps [Relief for War Victims]. | Real | Americas |  |
| 2390 | SECOURS NATIONAL (overprint) | French Colonies (various), semipostals [National Relief]. | Real | Africa |  |
| 2391 | SEDANG | bogus issue (1899). | Real | None |  |
| 2392 | SEDANG | Annam Kingdom - issued in 1889 by Marie David de Mayrena. Classic bogus issue. | Not Scott Listed | None | |
| 2393 | SEGNATASSA (no country name) | Italy, postage due stamps (1863-9) [Sign Tax]. | Real | Europe |  |
| 2394 | SEGNATASSE (no country name) | Italy and Colonies, Vatican, postage due stamps [Sign Tax]. | Real | Europe |  |
| 2395 | SEGURO POSTAL | Mexico, insured letter stamps [Safe Post]. | Real | Americas |  |
| 2396 | SEGURO SOCIAL DEL CAMPESINO (overprint) | Ecuador, postal tax stamps [Farmers Social Security]. | Real | Americas | |
| 2397 | SEIYUN | Aden- Seiyun. | Real | Asia | |
| 2398 | SEJM WILNIE | Central Lithuania (1922). | Real | Europe | |
| 2399 | SELANGOR | Malaya- Selangor. | Real | Asia | |
| 2400 | SELLO POSTAL | Spain (1900-2). | Real | Europe | |
| 2401 | SELLO POSTAL (overprint) | Nicaragua, revalidating demonetized issues. | Real | Americas | |
| 2402 | SELLOS DE CORREOS- RESENA HISTORICA | Spain, private issue by A.F. Duro (1881). | Real | Europe | |
| 2403 | SEN (currency) | Japan, Ryukyu Islands (1948-50). | Real | Asia | |
| 2404 | SENEGAL (overprint on stamps of French Colonies) | Senegal (1892). | Real | Africa |  |
| 2405 | SENEGAMBIE ET NIGER | Senegambia & Niger (1903). | Real | Africa |  |
| 2406 | SERBES (overprint on stamps of France) | Serbia (1916-8). | Real | Europe |  |
| 2407 | SERBIEN (overprint on stamps of Austria or Bosnia and Herzegovina) | Serbia- Austrian occupation (1916). | Real | Europe |  |
| 2408 | SERBIEN (overprint on stamps of Yugoslavia) | Serbia- German occupation (1941). | Real | Europe |  |
| 2409 | SERVICE DE LA SOCIETE DES NATIONS (overprint) | Switzerland, officials, League of Nations. | Real | Europe |  |
| 2410 | SERVICE DE L’ETAT | Egypt and Saudi Arabia, officials [Service of State]. | Real | Africa |  |
| 2411 | SERVICE DES POSTES PERSANES | Iran, officials. | Real | Asia |  |
| 2412 | SERVICE FRANCO | Iran, officials. | Real | Asia |  |
| 2413 | SERVICE POSTAL AERIEN | Belgian Congo, airmails. | Real | Africa |  |
| 2414 | SERVICE POSTAL AERIENNE | French Morocco, airmails. | Real | Africa |  |
| 2415 | SERVICIO AEREO | Spanish language countries [Air Service]. | Real | Africa | |
| 2416 | SERVICIO AEREO EXTERIOR | Spanish language countries [Foreign Air Service]. | Real | Europe | |
| 2417 | SERVICIO AEREO HABILITADO (overprint) | Honduras, officials made valid for airmail. | Real | Americas | |
| 2418 | SERVICIO AEREO INTERIOR | Spanish language countries [Domestic Air Service]. | Real | Americas | |
| 2419 | SERVICIO AEREO INTERNACIONAL (overprint) | Honduras, airmails [International Air Service]. | Real | Americas |  |
| 2420 | SERVICIO AEREO SOBRETASE | Argentina, airmails. | Real | Americas |  |
| 2421 | SERVICIO CENTROAMERICANO (overprint) | Nicaragua, airmails [Central American Service]. | Real | Americas |  |
| 2422 | SERVICIO DEL ESTADO (overprint) | Chile, officials [State Service]. | Real | Americas |  |
| 2423 | SERVICIO INTERNO (overprint) | Guatemala, officials [Internal Service]. | Real | Americas |  |
| 2424 | SERVICIO OFICIO | Paraguay, officials [Official Service]. | Real | Americas | |
| 2425 | SERVICIO OFICIO (overprint) | Peru and Ecuador, officials [Official Service]. | Real | Americas | |
| 2426 | SERVICIO ORDINARIO (overprint) | Nicaragua, converting airmails to regular issues [Ordinary Service]. | Real | Americas |  |
| 2427 | SERVICIO POSTAL AEREO | Brazil, airmails [Air Mail Service]. | Real | Americas |  |
| 2428 | SERVICIO POSTAL AEREO (overprint) | Colombia, Guatemala, Uruguay, airmails [Air Mail Service]. | Real | Americas |  |
| 2429 | SERVICIO POSTAL DEL SALVADOR | El Salvador [El Salvador Postal Service]. | Real | Americas |  |
| 2430 | SERVICIO POSTAL MEXICANO | Mexico [Mexico Postal Service] (1886-95). | Real | Americas |  |
| 2431 | SERVIZIO DI STATO | Italian language countries, airmail officials [State Service]. | Real | Europe |  |
| 2432 | SEVILLA-BARCELONA | Spain (1929). | Real | Europe |  |
| 2433 | SGR (currency) | German States- various [Silver Groschen]. | Real | Europe |  |
| 2434 | SH (in upper corners, no country name, eagle and shield) | German States- Schleswig-Holstein (1850). | Real | Europe |  |
| 2435 | SHANGHAI CHINA (overprint on stamps of U.S.) | United States- Offices in China (1919-22). | Real | Asia |  |
| 2436 | SHANGHAI L.P.O. | Shanghai [Local Post Office] (pre-1890). | Real | Asia |  |
| 2437 | SHANGHAI LOCAL POST | Shanghai (1890-3). | Real | Asia |  |
| 2438 | SHCO (on shield) | Mozambique, postal tax stamps. | Real | Africa |  |
| 2439 | SHETLAND ISLANDS | Scotland issued labels in 1993-94, purporting to be official. | Not Scott Listed | Europe | |
| 2440 | SHIHR AND MUKALLA | Aden- Shihr and Mukalla (1942-53). | Real | Asia |  |
| 2441 | SHQIPENIA (overprint on stamps of Turkey) | Albania (1913). | Real | Europe |  |
| 2442 | SHQIPENIE | Albania. | Real | Europe |  |
| 2443 | SHQIPERIA | Albania. | Real | Europe |  |
| 2444 | SHQIPERIE KORCE VETQEVERITALE | French Forces- occupation of Albania- Korytza [Albanian Korytza Independent]. | Real | Europe | |
| 2445 | SHQIPERIJA | Albania. | Real | Europe | |
| 2446 | SHQIPERISE | Albania. | Real | Europe |  |
| 2447 | SHQIPNI | Albania. | Real | Europe |  |
| 2448 | SHQIPNIJA | Albania. | Real | Europe |  |
| 2449 | SHQIPONIES | Albania. | Real | Europe | |
| 2450 | SICILIA | Italian States- Two Sicilies. | Real | Europe |  |
| 2451 | SICMON ISLANDS | Group of six islands in the South Pacific created by Nick Bantock for his book, Griffin & Sabine. | Not Scott Listed | None | |
| 2452 | SIEGE (OF) MAFEKING | Cape of Good Hope (1900). | Real | Africa |  |
| 2453 | SIEGE DE LA LIGUE ARABE | Morocco. | Real | Africa | |
| 2454 | SIKKIM | Overprints on India for state of same name. | Not Scott Listed | Asia |  |
| 2455 | SIMI (overprint on stamps of Italy) | Italy- Aegean Islands- Simi (1912-32). | Real | Europe |  |
| 2456 | SINGAPORE MALAYA | Singapore (1948-59). | Real | Asia |  |
| 2457 | SIRMOOR | India- Sirmoor (1879-1901). | Real | Asia |  |
| 2458 | SIVAS (overprint on stamps of Turkey) | Turkey (1930). | Real | Asia | |
| 2459 | SKILLING (currency) | Denmark, Norway. | Real | Europe |  |
| 2460 | SKILLING BANCO (currency) | Sweden. | Real | Europe | |
| 2461 | SKULL ISLAND, KINGDOM OF | Advertising fantasy created for movie King Kong. | Not Scott Listed | None | |
| 2462 | SLD. (currency) | Austria- Offices in Turkey. | Real | Europe |  |
| 2463 | SLESVIG | Schleswig- plebecite issue (1920). | Real | Europe | |
| 2464 | SLOBOVIA | Donald Evans issue. | Not Scott Listed | None | |
| 2465 | SLOVENI (overprint on stamps of Yugoslavia) | Yugoslavia- Italian Occupation (1941). | Real | Europe | |
| 2466 | SLOVENSKA POSTA | Czechoslovakia- Slovakia (1939-44). | Real | Europe |  |
| 2467 | SLOVENSKENO (overprint on stamps of Czechoslovakia) | Czechoslovakia- Slovakia (1939-44). | Real | Europe |  |
| 2468 | SLOVENSKO | Czechoslovakia- Slovakia (1939-44). | Real | Europe |  |
| 2469 | SLOVENSKO-PRIMORGE (overprint on stamps of Yugoslavia) | Yugoslavia- Istria (1945-6). | Real | Europe | |
| 2470 | SLOVENSKY STAT (overprint on stamps of Czechoslovakia) | Czechoslovakia- Slovakia (1939-44). | Real | Europe | |
| 2471 | SMIRNE (overprint on stamps of Italy) | Italy- Offices in Turkey- Smyrna (1909-22). | Real | Asia |  |
| 2472 | SMYRNE (overprint on stamps of Russia) | Russia- Offices in Turkey- Smyrna (1909-10). | Real | Asia | |
| 2473 | SN (currency) | Japan. | Real | Asia | |
| 2474 | SNARK ISLAND | Fantasy for island near Borneo. | Not Scott Listed | none | |
| 2475 | SNOW YORK | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | None | |
| 2476 | SNOWFLAKIA | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | None | |
| 2477 | SNOWGINIA | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | None | |
| 2478 | SNOWKLAHOMA | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | None | |
| 2479 | SNOWLAND | Christmas fantasy labels created by Maggie Kate. | Not Scott Listed | None | |
| 2480 | SOAY | Island off the island of Skye with labels bearing its name and declared bogus. | Not Scott Listed | None | |
| 2481 | SOBRE CLOTA PARA MULTOS POSTALES | Mexico- parcel posts. | Real | Americas | |
| 2482 | SOBREPORTO | Colombia- postage dues. | Real | Americas |  |
| 2483 | SOBREPORTO AEREO | Colombia- airmail postage dues. | Real | Americas | |
| 2484 | SOBRETASA AEREA | Colombia, airmail (1929). | Real | Americas | |
| 2485 | SOCIEDAD COLOMBO-ALEMANA DE TRANSPORTES AEREOS | Colombia, airmail (1920-1). | Real | Americas | |
| 2486 | SOCIEDADE DE GEOGRAPHIA DE LISBOA | Portugal, franchise stamps (1903-38) [Geographical Society of Lisbon]. | Real | Europe |  |
| 2487 | SOCIEDADE HUMANITARIA CRUZ DE ORIENTE | Mozambique, postal tax stamps [East Cross Humanitarian Society]. | Real | Africa | |
| 2488 | SOCIEDADE PORTUGUEZA DA CRUZ VERMELHA PORTE FRANCO | Portugal, private franchise stamps [Portuguese Red Cross]. | Real | Europe |  |
| 2489 | SOCIETE DES NATIONS | Switzerland- League of Nations, officials (1922-44). | Real | Europe |  |
| 2490 | SOCOTRA (Sokotra) | Cyprus stamps overprinted for Indian Ocean Island in 1892. | Not Scott Listed | Europe | |
| 2491 | SOL (currency) | Peru. | Real | Americas | |
| 2492 | SOLDI (currency) | Austria- Lombardy-Venetia (1858-65). | Real | Europe |  |
| 2493 | SOLIDARITE 1947 | Tunisia, semipostal. | Real | Africa |  |
| 2494 | SOLIDARITE FRANCAISE | French Colonies, general issue, semipostals (1943-4). | Real | Europe |  |
| 2495 | SOM UBESORGET AABNET AF POST DEPARTMENTET | Norway, return letter stamp [Return to Sender].. | Real | Europe |  |
| 2496 | SOM UINDLOST AABNET AF POST DEPARTMENTET | Norway, return letter stamp [Return to Sender- Not Called For]. | Real | Europe | |
| 2497 | SOMALI DEMOCRATIC REPUBLIC (1970-3). | SOMALIA | Real | Africa |  |
| 2498 | SOMALIA (overprint on stamps of Italy) | Somalia (1922-3). | Real | Africa | |
| 2499 | SOMALIA ITALIANA (overprint on stamps of Italy) | Somalia. | Real | Africa |  |
| 2500 | SOMALIA ITALIANA MERIDIONALE (overprint on stamps of Italy) | Somalia, postage dues (1906-8).. | Real | Africa |  |
| 2501 | SOMALILAND INDEPENDENCE 26 JUNE 1960 (overprint) | Somaliland. | Real | Africa |  |
| 2502 | SOMALIS | Somali Coast (1902-67). | Real | Africa |  |
| 2503 | SOMALIYA | Somalia (1973-present). | Real | Africa |  |
| 2504 | SONNE | No Information Available. | Not Scott Listed | None |  |
| 2505 | SONORA | Mexico- Sonora civil war issues (1913-4). | Real | Americas |  |
| 2506 | SONORA | Fantasy for State in Mexico. | Not Scott Listed | Americas | |
| 2507 | SORUTH | India- Soruth (1929-49). | Real | Asia |  |
| 2508 | SOUDAN (overprint on stamps of Egypt) | Sudan (1897). | Real | Africa |  |
| 2509 | SOUDAN (overprint on stamps of French Colonies) | Sudan (1894). | Real | Africa |  |
| 2510 | SOUDAN (overprint on stamps of Upper Senegal and Niger) | Sudan (1921-30). | Real | Africa | |
| 2511 | SOUDAN FAIS | French Sudan (1894) [Sudan Francaise]. | Real | Africa | |
| 2512 | SOUDAN FRANCAIS | French Sudan. | Real | Africa |  |
| 2513 | SOURASHTRA | India- Soruth (1923-9). | Real | Asia | |
| 2514 | SOUTH CHINA SEA ISLANDS FEDERATION | Islands in South China Sea that claimed independence. | Not Scott Listed | Asia | |
| 2515 | SOUTH GEORGIA (overprint on stamps of Falkland Islands) | Falkland Islands- South Georgia (1944- present). | Real | Americas |  |
| 2516 | SOUTH ORKNEYS (overprint on stamps of Falkland Islands) | Falkland Islands- South Orkneys (1944-62). | Real | Americas |  |
| 2517 | SOUTH SHETLANDS (overprint on stamps of Falkland Islands) | Falkland Islands- South Shetlands (1944-62). | Real | Americas |  |
| 2518 | SOUTH WEST AFRICA (overprint on stamps of South Africa) | South West Africa (1923-27). | Real | Africa |  |
| 2519 | SOUTHERN RHODESIA (overprint on stamps of Great Britain) | Southern Rhodesia, postage dues (1951). | Real | Africa |  |
| 2520 | SOWJETISCHE BESATZUNGS ZONE (overprint on stamps of Germany) | Germany- Russian occupation (1948). | Real | Europe |  |
| 2521 | SPANISH WESTERN SAHARA | Spanish Sahara. | Real | Africa |  |
| 2522 | SPECIAL EXPRES | Canada, special delivery. | Real | Americas |  |
| 2523 | SPECIMEN (overprint) | English speaking countries, sample stamp. | Real | Americas |  |
| 2524 | SPECULISLAND | Swiss origin. | Not Scott Listed | Europe | |
| 2525 | SPITFIRE | Camerouns, semipostals. | Real | Africa |  |
| 2526 | SPITZBERGEN | Norwegian island, various issues, may be local post. | Not Scott Listed | Europe |  |
| 2527 | SPM (overprint on stamps of French Colonies) | St. Pierre and Miquelon (1885-6). | Real | Americas |  |
| 2528 | SPOORWAGEN CHEMINS DE FUR | Belgium, parcel posts. | Real | Europe |  |
| 2529 | SRBH HRVATI I SLOVENICA | Yugoslavia. | Real | Europe | |
| 2530 | SRI LANKA | Ceylon (1972-present). | Real | Asia |  |
| 2531 | SRODKOWA LITVA | Central Lithuania. | Real | Europe |  |
| 2532 | SRODKOWA LITWA POCZTA | Central Lithuania. | Real | Europe |  |
| 2533 | ST (no country name) | Thailand (1932-43). | Real | Asia |  |
| 2534 | ST-PIERRE M-ON (overprint on stamps of French Colonies) | St. Pierre & Miquelon (1891-2). | Real | Americas |  |
| 2535 | ST. CHRISTOPHER-NEVIS-ANGUILLA | St. Kitts- Nevis (1952-80). | Real | Americas |  |
| 2536 | ST. KILDA | Island 100 miles off the coast of Scotland with labels bearing its name. | Not Scott Listed | Europe |  |
| 2537 | ST. MARRON | Swiss origin. | Not Scott Listed | Europe | |
| 2538 | STAATS MARKE | German States- Wurttemberg, officials. | Real | Europe |  |
| 2539 | STADT BERLIN | Germany- Soviet occupation (1948-9). | Real | Europe |  |
| 2540 | STADT POST AMT | German States- Bremen [City Post Bremen]. | Real | Europe |  |
| 2541 | STADT POST BASEL | Switzerland, Basel [City Post Basel]. | Real | Europe |  |
| 2542 | STAEMPLE | Austria, newspaper stamps. | Real | Europe |  |
| 2543 | STAFFA | Island issued hundreds of labels since 1969, Scotland local issue. | Not Scott Listed | none |  |
| 2544 | STAMP DUTY | New Zealand and Victoria fiscal tax stamps. | Real | Europe |  |
| 2545 | STAMPALIA (overprint on stamps of Italy) | Italy- Aegean Islands- Stampalia (1912-32). | Real | Europe |  |
| 2546 | STAMPLE | Austria, newspaper stamps [Stamp]. | Real | Europe | |
| 2547 | STATE OF KUWAIT | Kuwait (1962-present). | Real | Africa |  |
| 2548 | STATE OF RAINBOW CREEK | Australian secessionist state. | Not Scott Listed | Australia |  |
| 2549 | STATE OF SINGAPORE | Singapore. | Real | Asia |  |
| 2550 | STATI PARM | Italian States- Parma (1852-9) [State of Parma]. | Real | Europe |  |
| 2551 | STATI PARMENSI | Italian States- Parma (1852-9) [State of Parma]. | Real | Europe |  |
| 2552 | STEEP HOLM | Island off Somerset with labels bearing its name. | Not Scott Listed | Europe |  |
| 2553 | STEIN | Donald Evans issue, Holland. | Not Scott Listed | Europe | |
| 2554 | STEMPEL with CENTS | Austria- Lombardy Venetia (1850). | Real | Europe |  |
| 2555 | STEMPEL with KREUZER | Austria (1850). | Real | Europe |  |
| 2556 | STEMPLE | Austria, newspaper stamps [Stamp]. | Real | Europe |  |
| 2557 | STG (no country name) | Thailand (1932-43). | Real | Asia | |
| 2558 | STOCKHOLM | Sweden (1924). | Real | Europe | |
| 2559 | STOTHNKH (currency) | Bulgaria. | Real | Europe | |
| 2560 | STRAITS SETTLEMENTS (overprint on stamps of Labuan) | Straits Settlements (1907). | Real | Australia |  |
| 2561 | STROMA, ISLE OF | British Local Post. | Not Scott Listed | Europe |  |
| 2562 | SUBMARINO with CORREO | Spain- submarine stamps (1938). | Real | Europe |  |
| 2563 | SUDAN POSTAGE TAX | Sudan, postage dues. | Real | Africa |  |
| 2564 | SUID-AFRIKA | South Africa. | Real | Africa |  |
| 2565 | SUIDWES-AFRIKA | South West Africa. | Real | Africa |  |
| 2566 | SUL BOLLETTlNO | Italy or overprinted colonies, parcel posts. | Real | Europe |  |
| 2567 | SUL BOLLETTlNO (on stamps with star and crescent) | Somalia, parcel posts. | Real | Africa |  |
| 2568 | SULLA RICEVUTA | Italy or overprinted colonies, parcel posts. | Real | Europe |  |
| 2569 | SULLA RICEVUTA (on stamps with star and crescent) | Somalia, parcel posts. | Real | Africa |  |
| 2570 | SULTANAT D'ANJOUAN | Anjouan. | Real | Africa |  |
| 2571 | SULTANATE OF KHAYAM | Omar Kho~am, the tentmaker, George Fabian fantasy. | Not Scott Listed | Africa | |
| 2572 | SUMMER ISLES (TANERA MORE) | Island off the coast of Scotland with carriage post labels bearing its name. | Not Scott Listed | Europe |  |
| 2573 | SUNG-TING | Donald Evans issue, Chinese ceramics. | Not Scott Listed | none | |
| 2574 | SUNGEI UJONG (overprint on stamps of Strait Settlements) | Malaya- Sungei Ujong (1878-91). | Real | Asia |  |
| 2575 | SUOMI (currency) | Finland (1917-present). | Real | Europe |  |
| 2576 | SURCHARGE POSTAGE | Grenada. Trinidad and Tobago, postage dues. | Real | Americas |  |
| 2577 | SURF ISLAND | Unknown, perhaps located in or near Indonesia. | Not Scott Listed | None |  |
| 2578 | SURGOS | Hungary, special delivery. | Real | Europe |  |
| 2579 | SURGOS (overprint on stamps of Hungary) | Fiume, special delivery. | Real | Europe |  |
| 2580 | SURINAME | Surinam. | Real | Americas |  |
| 2581 | SVERIGE | Sweden. | Real | Europe | |
| 2582 | SWAN ISLAND | Many incarnations usually parodying Western Australia stamps also for radio station off coast of Honduras. | Not Scott Listed | None | |
| 2583 | SWAZEILAND | Swaziland (1889-95). | Real | Africa | |
| 2584 | SWAZILAND (overprinted on stamps of South Africa) | Swaziland (1945). | Real | Africa |  |
| 2585 | SYRIAN ARAB REPUBLIC | Syria. | Real | Asia |  |
| 2586 | SYRIE | Syria. | Real | Asia |  |
| 2587 | SYRIENNE | Syria. | Real | Asia |  |
| 2588 | SZEGED 1919 (overprint on stamps of Hungary) | Hungary- Szeged (1919). | Real | Europe |  |
| 3923 | S.P.L.A.J. Socialist People's Libyan Arab Jamahiriya | S.P.L.A.J. Socialist People's Libyan Arab Jamahiriya (stamp issuing country) 1977 - 1988 | Real | Africa |  |
| 3924 | Saar | Saar (stamp issuing country) 1947 - 1959 | Real | Europe |  |
| 3926 | Saar (French Administration) | Saar (French Administration) (stamp issuing country) 1920 - 1935 | Real | Europe |  |
| 3927 | Saar (French Zone) | Saar (French Zone) (stamp issuing country) 1945 - 1947 | Real | Europe |  |
| 3928 | Sabah | Sabah (stamp issuing country) 1964 - | Real | Asia |  |
| 3929 | Salonika (British Field Office) | Salonika (British Field Office) (stamp issuing country) 1916 - only | Real | Europe |  |
| 3930 | Salonika (Italian Post Office) | Salonika (Italian Post Office) (stamp issuing country) 1909 - 1911 | Real | Europe |  |
| 3931 | Salonika (Russian Post Office) | Salonika (Russian Post Office) (stamp issuing country) 1909 - 1914 | Real | Europe |  |
| 3932 | Samoa | Samoa (stamp issuing country) 1982 - | Real | Australia |  |
| 3933 | Samoa (Kingdom) | Samoa (Kingdom) (stamp issuing country) 1877 - 1900 | Real | Australia |  |
| 3934 | Samoa (New Zealand Administration) | Samoa (New Zealand Administration) (stamp issuing country) 1914 - 1935 | Real | Australia |  |
| 3935 | Samoa I Sisifo | Samoa I Sisifo (stamp issuing country) 1958 - 1982 | Real | Australia |  |
| 3937 | Samos | Samos (stamp issuing country) 1912 - 1915 | Real | Europe |  |
| 3938 | San Marino | San Marino (stamp issuing country) 1877 | Real | Europe |  |
| 3939 | Santander | Santander (stamp issuing country) 1884 - 1903 | Real | Americas |  |
| 3940 | Sao Tome e Principe | Sao Tome e Principe (stamp issuing country) 1870 | Real | Africa |  |
| 3941 | Sarawak | Sarawak (stamp issuing country) 1869 - | Real | Asia |  |
| 3942 | Sarawak (BMA) | Sarawak (BMA) (stamp issuing country) 1945 - only | Real | Asia |  |
| 3943 | Sarawak (Japanese Occupation) | Sarawak (Japanese Occupation) (stamp issuing country) 1942 - 1945 | Real | Asia |  |
| 3944 | Saseno (Italian Occupation) | Saseno (Italian Occupation) (stamp issuing country) 1923 - only | Real | Europe |  |
| 3945 | Saudi Arabia | Saudi Arabia (stamp issuing country) 1932 - | Real | Asia |  |
| 3946 | Saxony | Saxony (stamp issuing country) 1850 - 1868 | Real | Europe |  |
| 3948 | Saxony (Russian Zone) | Saxony (Russian Zone) (stamp issuing country) 1945 - 1946 | Real | Europe |  |
| 3949 | Schleswig | Schleswig (stamp issuing country) 1864 - 1868 | Real | Europe |  |
| 3950 | Schleswig-Holstein | Schleswig-Holstein (stamp issuing country) 1850 - 1868 | Real | Europe |  |
| 3951 | Schweizer-Renecke | Schweizer-Renecke (stamp issuing country) 1900 - only | Real | Europe |  |
| 3952 | Scinde | Scinde (stamp issuing country) 1852 - 1854 | Real | Asia |  |
| 3953 | Scotland | Scotland (stamp issuing country) 1958 - | Real | Europe |  |
| 3954 | Scutari (Italian Post Office) | Scutari (Italian Post Office) (stamp issuing country) 1909 - 1915 | Real | Europe |  |
| 3955 | Selangor | Selangor (stamp issuing country) 1881 - | Real | Asia |  |
| 3956 | Senegal (French Colony) | Senegal (French Colony) (stamp issuing country) 1887 - | Real | Africa |  |
| 3958 | Senegambia and Niger | Senegambia and Niger (stamp issuing country) 1903 - 1906 | Real | Africa |  |
| 3959 | Serbia | Serbia (stamp issuing country) 1866 - 1920; 2006 | Real | Europe |  |
| 3960 | Serbia (Austrian Occupation) | Serbia (Austrian Occupation) (stamp issuing country) 1916 - only | Real | Europe |  |
| 3961 | Serbia (German Occupation) | Serbia (German Occupation) (stamp issuing country) 1941 - 1944 | Real | Europe |  |
| 3962 | Serbia (Yugoslav Regional Issues) | Serbia (Yugoslav Regional Issues) (stamp issuing country) 1944 - 1946 | Real | Europe |  |
| 3963 | Serbia and Montenegro | Serbia and Montenegro (stamp issuing country) 2003 - 2006 | Real | Europe |  |
| 3964 | Seychelles | Seychelles (stamp issuing country) 1890 - | Real | Africa |  |
| 3965 | Shahpura | Shahpura (stamp issuing country) 1914 - 1920 | Real | Asia |  |
| 3966 | Shanghai | Shanghai (stamp issuing country) 1865 - 1898 | Real | Asia |  |
| 3967 | Shanghai (US Postal Agency) | Shanghai (US Postal Agency) (stamp issuing country) 1919 - 1922 | Real | Asia |  |
| 3969 | Shansi (Japanese Occupation) | Shansi (Japanese Occupation) (stamp issuing country) 1941 | Real | Asia |  |
| 3970 | Shantung (Japanese Occupation) | Shantung (Japanese Occupation) (stamp issuing country) 1941 | Real | Asia |  |
| 3971 | Sharjah | Sharjah (stamp issuing country) 1963 - 1972 | Real | Asia |  |
| 3972 | Shensi | Shensi (stamp issuing country) 1949 - only | Real | Asia |  |
| 3973 | ShensiKansuNinghsia | ShensiKansuNinghsia (stamp issuing country) 1946 - 1949 | Real | Asia | |
| 3974 | Sherifian Post | Sherifian Post (stamp issuing country) 1912 - 1919 | Real | Asia | |
| 3975 | Siam | Siam (stamp issuing country) 1883 - 1939 | Real | Asia |  |
| 3976 | Siam (Thailand) | Siam (Thailand) (stamp issuing country) 1947 - 1950 | Real | Asia |  |
| 3977 | Siberia (Czechoslovak Army) | Siberia (Czechoslovak Army) (stamp issuing country) 1919 - 1920 | Real | Europe |  |
| 3978 | Sicily | Sicily (stamp issuing country) 1859 - 1860 | Real | Europe |  |
| 3980 | Sierra Leone | Sierra Leone (stamp issuing country) 1859 - | Real | Africa |  |
| 3981 | Sinaloa | Sinaloa (stamp issuing country) 1929 - only | Real | Asia |  |
| 3982 | Singapore | Singapore (stamp issuing country) 1948 - | Real | Asia |  |
| 3983 | Sinkiang | Sinkiang (stamp issuing country) 1915 - 1949 | Real | Asia |  |
| 3984 | Sint Maarten | Sint Maarten (stamp issuing country) 2010 - | Real | Asia |  |
| 3985 | Sirmoor | Sirmoor (stamp issuing country) 1879 - 1902 | Real | Asia |  |
| 3986 | Slesvig | Slesvig (stamp issuing country) 1920 - only | Real | Europe |  |
| 3987 | Slovakia | Slovakia (stamp issuing country) 1993 - | Real | Europe |  |
| 3988 | Slovakia (Autonomous State) | Slovakia (Autonomous State) (stamp issuing country) 1939 - 1945 | Real | Europe |  |
| 3989 | Slovenia | Slovenia (stamp issuing country) 1991 - | Real | Europe |  |
| 3991 | Slovenia (Provincial Issues) | Slovenia (Provincial Issues) (stamp issuing country) 1919 - 1921 | Real | Europe |  |
| 3992 | Slovenia (Yugoslav Regional Issues) | Slovenia (Yugoslav Regional Issues) (stamp issuing country) 1945 - 1946 | Real | Europe |  |
| 3993 | Smirne (Italian Post Office) | Smirne (Italian Post Office) (stamp issuing country) 1909 - 1911 | Real | Europe |  |
| 3994 | Smyrne (Russian Post Office) | Smyrne (Russian Post Office) (stamp issuing country) 1909 - 1910 | Real | Asia |  |
| 3995 | Solomon Islands | Solomon Islands (stamp issuing country) 1975 - | Real | Australia |  |
| 3996 | Somalia (British Administration) | Somalia (British Administration) (stamp issuing country) 1950 - only | Real | Africa |  |
| 3997 | Somalia (British Military Administration) | Somalia (British Military Administration) (stamp issuing country) 1948 - 1950 | Real | Africa |  |
| 3998 | Somaliland Protectorate | Somaliland Protectorate (stamp issuing country) 1904 - 1960 | Real | Africa |  |
| 3999 | Soruth (Saurashtra) | Soruth (Saurashtra) (stamp issuing country) 1864 - 1949 | Real | Asia |  |
| 4002 | South African Republic | South African Republic (stamp issuing country) 1869 - 1902 | Real | Africa |  |
| 4003 | South Arabian Federation | South Arabian Federation (stamp issuing country) 1963 - 1968 | Real | Asia |  |
| 4004 | South Australia | South Australia (stamp issuing country) 1855 - 1912 | Real | Australia |  |
| 4005 | South Bulgaria | South Bulgaria (stamp issuing country) 1885 - only | Real | Europe |  |
| 4006 | South China (Japanese Occupation) 中华人民共和国 | South China (Japanese Occupation) (stamp issuing country) 1942 | Real | Asia | |
| 4007 | South China (People's Post) 中华人民共和国 | South China (People's Post) (stamp issuing country) 1949 - only | Real | Asia |  |
| 4008 | South Georgia | South Georgia (stamp issuing country) 1963 - 1980 | Real | Europe |  |
| 4009 | South Georgia and the South Sandwich Islands | South Georgia and the South Sandwich Islands (stamp issuing country) 1980 | Real | Europe |  |
| 4010 | South Kasai | South Kasai (stamp issuing country) 1961 - 1962 | Real | Africa |  |
| 4012 | South Korea | South Korea (stamp issuing country) 1946 - | Real | Asia |  |
| 4013 | South Korea (North Korean Occupation) | South Korea (North Korean Occupation) (stamp issuing country) 1950 - only | Real | Asia | |
| 4014 | South Lithuania (Russian Occupation) | South Lithuania (Russian Occupation) (stamp issuing country) 1919 - only | Real | Europe |  |
| 4015 | South Sudan | South Sudan (stamp issuing country) 2011 - | Real | Africa |  |
| 4016 | South Vietnam | South Vietnam (stamp issuing country) 1955 - 1976 | Real | Asia |  |
| 4017 | South West Africa | South West Africa (stamp issuing country) 1923 - 1991 | Real | Africa |  |
| 4018 | South West China (People's Post) 中华人民共和国 | South West China (People's Post) (stamp issuing country) 1949 - 1950 | Real | Asia | |
| 4019 | Southern Cameroons | Southern Cameroons (stamp issuing country) 1960 - 1961 | Real | Africa |  |
| 4020 | Southern Nigeria | Southern Nigeria (stamp issuing country) 1901 - 1914 | Real | Africa |  |
| 4021 | Southern Rhodesia | Southern Rhodesia (stamp issuing country) 1924 - 1964 | Real | Africa |  |
| 4024 | Southern Yemen | Southern Yemen (stamp issuing country) 1968 - 1971 | Real | Asia |  |
| 4025 | Southern Zone, Morocco | Southern Zone, Morocco (stamp issuing country) 1956 - 1958 | Real | Africa |  |
| 4026 | Sovereign Military Order of Malta | Sovereign Military Order of Malta (stamp issuing country) 1966 | Real | Europe |  |
| 4027 | Sovereign Military Order of Malta (Italy) | Sovereign Military Order of Malta (Italy) (stamp issuing country) 1966 | Real | Europe |  |
| 4028 | Spanish Guinea | Spanish Guinea (stamp issuing country) 1902 - 1960 | Real | Africa |  |
| 4029 | Spanish Marianas | Spanish Marianas (stamp issuing country) 1898 - 1899 | Real | Africa |  |
| 4030 | Spanish Morocco | Spanish Morocco (stamp issuing country) 1914 - 1956 | Real | Africa |  |
| 4031 | Spanish Philippines | Spanish Philippines (stamp issuing country) 1854 - 1898 | Real | Asia |  |
| 4032 | Spanish Sahara | Spanish Sahara (stamp issuing country) 1924 - 1975 | Real | Africa |  |
| 4034 | Spanish West Africa | Spanish West Africa (stamp issuing country) 1949 - 1951 | Real | Africa |  |
| 4035 | Sremsko Baranjska Oblast (Croatia) | Sremsko Baranjska Oblast (Croatia) (stamp issuing country) 1995 - 1997 | Real | Europe |  |
| 4036 | Sri Lanka | Sri Lanka (stamp issuing country) 1972 - | Real | Asia |  |
| 4037 | Srpska Krajina (Croatia) | Srpska Krajina (Croatia) (stamp issuing country) 1993 - 1995 | Real | Europe |  |
| 4038 | St Christopher | St Christopher (stamp issuing country) 1870 - 1890 | Real | Americas |  |
| 4039 | St Christopher Nevis and Anguilla | St Christopher Nevis and Anguilla (stamp issuing country) 1952 - 1980 | Real | Americas |  |
| 4040 | St Helena | St Helena (stamp issuing country) 1856 - | Real | Americas |  |
| 4041 | St Kitts | St Kitts (stamp issuing country) 1980 - | Real | Americas |  |
| 4042 | St Kitts Nevis and Anguilla | St Kitts Nevis and Anguilla (stamp issuing country) 1967 - 1971 | Real | Americas |  |
| 4043 | St KittsNevis | St Kitts Nevis (stamp issuing country) 1903 - 1980 | Real | Americas |  |
| 4045 | St Lucia | St Lucia (stamp issuing country) 1860 - | Real | Americas |  |
| 4046 | St Pierre et Miquelon | St Pierre et Miquelon (stamp issuing country) 1885 - 1978 | Real | Americas |  |
| 4047 | St Vincent | St Vincent (stamp issuing country) 1861 - | Real | Americas |  |
| 4048 | Ste Marie de Madagascar | Ste Marie de Madagascar (stamp issuing country) 1894 - 1896 | Real | Africa |  |
| 4049 | Stellaland Republic | Stellaland Republic (stamp issuing country) 1884 - 1885 | Real | Africa |  |
| 4050 | Stockholm | Stockholm (stamp issuing country) 1856 - 1862 | Real | Europe |  |
| 4051 | Straits Settlements | Straits Settlements (stamp issuing country) 1867 - 1942 | Real | Asia |  |
| 4052 | Sudan | Sudan (stamp issuing country) 1897 - | Real | Africa |  |
| 4053 | Sumatra (Japanese Occupation) | Sumatra (Japanese Occupation) (stamp issuing country) 1943 - 1945 | Real | Asia |  |
| 4054 | Sungei Ujong | Sungei Ujong (stamp issuing country) 1878 - 1895 | Real | Asia |  |
| 4056 | Supeh (Japanese Occupation) | Supeh (Japanese Occupation) (stamp issuing country) 1941 | Real | Asia |  |
| 4057 | Suriname | Suriname (stamp issuing country) 1873 - | Real | Americas |  |
| 4058 | Swaziland | Swaziland (stamp issuing country) 1933 - | Real | Africa |  |
| 4059 | Swaziland (Provisional Government) | Swaziland (Provisional Government) (stamp issuing country) 1889 - 1894 | Real | Africa |  |
| 4060 | Sweden | Sweden (stamp issuing country) 1855 - | Real | Europe |  |
| 4061 | Switzerland | Switzerland (stamp issuing country) 1850 - | Real | Europe |  |
| 4062 | Syme | Syme (stamp issuing country) 1912 - 1932 | Real | Europe | |
| 4063 | Syria | Syria (stamp issuing country) 1924 - | Real | Asia |  |
| 4064 | Syria (French Occupation) | Syria (French Occupation) (stamp issuing country) 1919 - 1924 | Real | Asia |  |
| 4065 | Szechwan | Szechwan (stamp issuing country) 1933 - only | Real | Asia |  |
| 4133 | South Africa | South Africa (stamp issuing country) 1910 - | Real | Africa |  |