Radio Telescope and Observatory 30 h — Czechoslovakia, 1957
Radio Telescope and Observatory (Czechoslovakia, 1957), face value 30 h, “International Geophysical Year” series. Photo, catalogue value, details and photo…
- Series
- International Geophysical Year
- Issue date
- 1957
- Face value
- 30 h
- Colors
- Yellow
- Print run
- 4,430,000
- Yvert
- CS 939
- Michel
- CS 1055
- Stanley Gibbons
- CS 1012
- Scott
- CS 836