70th Birth Anniversary of M.V. Keldysh (1911-1978) 4 Soviet kopek — USSR, 1981
70th Birth Anniversary of M.V. Keldysh (1911-1978) (USSR, 1981), face value 4 Soviet kopek, “Birth and Death Anniversaries (1981)” series. Photo, catalogue…
- Series
- Birth and Death Anniversaries (1981)
- Issue date
- 1981
- Face value
- 4 Soviet kopek
- Colors
- Multicolor
- Print run
- 3,000,000
- Yvert
- SU 4774
- Michel
- SU 5036
- Stanley Gibbons
- SU 5091
- Scott
- SU 4906