"Pro Aero 1949"; sailplane 150 Ct. — Switzerland, 1949
"Pro Aero 1949"; sailplane (Switzerland, 1949), face value 150 Ct., “Pro Aero” series. Photo, catalogue value, details and photo identification.
- Series
- Pro Aero
- Issue date
- 1949
- Face value
- 150 Ct.
- Colors
- Light yellow | Violet
- Print run
- 235,854