9th Trade Union Congress, Prague 1977 30 h — Czechoslovakia, 1977
9th Trade Union Congress, Prague 1977 (Czechoslovakia, 1977), face value 30 h. Photo, catalogue value, details and photo identification.
- Issue date
- 1977
- Face value
- 30 h
- Colors
- Multicolor
- Print run
- 18,050,000
- Yvert
- CS 2210
- Michel
- CS 2374
- Stanley Gibbons
- CS 2336
- Scott
- CS 2113