Nikolai I. Lobachevsky (1792-1856), Russian Mathematician 40 Soviet kopek — USSR, 1951
Nikolai I. Lobachevsky (1792-1856), Russian Mathematician (USSR, 1951), face value 40 Soviet kopek, “Famous Russian scientists” series. Photo, catalogue…
- Series
- Famous Russian scientists
- Issue date
- 1951
- Face value
- 40 Soviet kopek
- Colors
- Brown
- Print run
- 1,000,000