Biplane with overprint "Pro Aero 1938" 75 Ct. — Switzerland, 1938
Biplane with overprint "Pro Aero 1938" (Switzerland, 1938), face value 75 Ct., “Pro Aero” series. Photo, catalogue value, details and photo identification.
- Series
- Pro Aero
- Issue date
- 1938
- Face value
- 75 Ct.
- Colors
- Green grey | Red
- Print run
- 287,502
- Yvert
- CH PA26
- Michel
- CH 325
- Stanley Gibbons
- CH 386
- Scott
- CH C26