4th International Congresses for Essential Oils, 1968 6 Russian kopek — USSR, 1968
4th International Congresses for Essential Oils, 1968 (USSR, 1968), face value 6 Russian kopek, “International Congresses, 1968” series. Photo, catalogue…
- Series
- International Congresses, 1968
- Issue date
- 1968
- Face value
- 6 Russian kopek
- Colors
- Multicolor
- Print run
- 4,000,000