| Record Number | Keyword(s) | Country | Catalog Listed? | Continent | |
| 1128 | I POLSKA WYSTAWA MAREK (overprint) | Poland, semipostals [White Cross Society]. | Real | Europe |  |
| 1946 | POCZTA POLSKA (overprint on German occupation stamps) | Poland. | Real | Europe |  |
| 1947 | POCZTA POLSKA (overprint on stamps of Austria) | Poland (1918). | Real | Europe |  |
| 1948 | POCZTA POLSKA (overprint on stamps of Germany) | Poland Poznan issues (1919). | Real | Europe |  |
| 1953 | POLSKA | Poland. | Real | Europe |  |
| 859 | FEN | (currency overprint with Poczta Polska) Poland (1918) [Fenigy]. | Real | Europe |  |