Keyword(s) | Country | Catalog Listed? | |
I POLSKA WYSTAWA MAREK (overprint) | Poland, semipostals [White Cross Society]. | Real | ![](https://stampsmarter.org/aps/ident/images/IPOLSKAWYSTAWA.jpg) |
POCZTA POLSKA (overprint on German occupation stamps) | Poland. | Real | ![](https://stampsmarter.org/aps/ident/images/POCZTA1946.jpg) |
POCZTA POLSKA (overprint on stamps of Austria) | Poland (1918). | Real | ![](https://stampsmarter.org/aps/ident/images/POCZTA1947.jpg) |
POCZTA POLSKA (overprint on stamps of Germany) | Poland Poznan issues (1919). | Real | ![](https://stampsmarter.org/aps/ident/images/POCZTA1948.jpg) |
POLSKA | Poland. | Real | ![](https://stampsmarter.org/aps/ident/images/POLSKA1953.jpg) |
FEN | (currency overprint with Poczta Polska) Poland (1918) [Fenigy]. | Real | ![](https://stampsmarter.org/aps/ident/images/fen859.jpg) |