M. O. Dolivo-Dobrovolsky
- Catalog #
- 2654
- Year
- 1962
- Denomination
- 4k
- Color
- Blue-gray, olive
- Artist
- N. Kruglov
- Printing method
- Intaglio
- Perforation
- Harrow 12:11½
- Issued
- 3,000,000
- Description
- Electrical Engineer M. O. Dolivo-Dobrovolsky (1862-1919). The alternating current generator. To the 100 anniversary from the day of birth.
Postage stamps the same series: Scientists of our country
N. N. Zinin
- Catalog #
- 2655
- Year
- 1962
- Denomination
- 4k
- Color
- Black-brown, lilac
- Artist
- Kruglov N.
- Printing method
- Intaglio
- Perforation
- Harrow 12:11½
- Issued
- 3,000,000
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