Stamps of Russia, 20 Jun 1969
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postage
1969, Jun 20 Periodic Law 100th issue unwmk p. 12
| X | 6k | multi | Dmitri Mendeleev & formulas | |||
| - | 30k | car | sheet | — | — |
1969, Jun 20 Soviet scientific inventions 50th issue
| X | 4k | multi | Laser Beam Guiding a Rocket |
1969, Jun 20 Peace Movement 20th issue
| - | 10k | multi | Buildings of European Capitals Hand Holding Peace Flag |
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