Closed Chain Made of Rings and Squares overprinted 50 Ct. — Switzerland, 1959
Closed Chain Made of Rings and Squares overprinted (Switzerland, 1959), face value 50 Ct., “PTT conference” series. Photo, catalogue value, details and…
- Series
- PTT conference
- Issue date
- 1959
- Face value
- 50 Ct.
- Colors
- Bright cobalt blue
- Print run
- 656,716