Stamps of Russia, 25 Nov 1987
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postage
1987, Nov 25 100th Anniversary of the Birth of V.N. Podbelsky issue unwmk p. 12.25x12
| - | 5k | brnblk | V.N. Podbelsky |
1987, Nov 25 100th Anniversary of the Birth of N.I. Vavilov issue
| - | 5k | bl | N.I. Vavilov |
1987, Nov 25 Science in USSR issue p. 11.5
| - | 5k | multi | Tokamak thermonuclear system | |||
| - | 10k | multi | Kolskaya borehole | |||
| - | 20k | multi | "Ratan-600" |
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