Colnect-733-448-Franciszek-Zwirko-and-Stanis%C5%82aw-Wigura-with-their-RWD6-ai.jpg
Source: Colnect
Issued by: Poland
Function: airmail
Date: 8/28/1934
Denom: 30g
Overprint: CHALLENGE//1934
Ovpt color: red
On: 4/15/1933 30g issue=circuit of Europe win
Color: gray green
Design: Zwirko & airplane & Wigura
Watermark: unwmk
Perf:
Catalog value:

In collections: used (Stan Shebs)

External links:
Colnect 199360..Air_Tournament


Record of changes