5th International Biochemical Congress, 1961, Moscow 6 Soviet kopek — USSR, 1961
5th International Biochemical Congress, 1961, Moscow (USSR, 1961), face value 6 Soviet kopek, “International Congresses” series. Photo, catalogue value…
- Series
- International Congresses
- Issue date
- 1961
- Face value
- 6 Soviet kopek
- Colors
- Multicolor
- Print run
- 2,300,000