Air Mail
Sweden, cancelled post card with stamp
1927. SVERIGE. 15 öre Gustav on LUFTPOST PAR AVION card TRYCKSAKER (PRINTER MATTER) from STOCKHOLM 19.4.27 to Polen. Transit cancel BERLIN C LUFTPOST 20.4.27. Red german cancel Mit Luftpost befördert über flughafen Tempelhofer feld Postamt Berlin C 2. Unusual to Poland.
Denmark, Michel 145, cancelled post card with stamp
1930. DANMARK. Air mail 25 øre on postcard cancelled KØBENHAVN LUFTPOST 15.5.30 to Warszawa, Poland. 1. Natluftpost 15. Maj 1930. Kjøbenhavn - Berlin - Ptag - Warszawa. Transit cancels from Berlin.
Scott C3
Afa 146
Poland, Michel 485+, cancelled post card with stamp
1948. 15 ZL. FDC 19.4.48.