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Lot # 1024 | P | Scott # 4438
| 1976, Academician Nikolay Burdenko, perforated proof of 4k in deep blue and red (issued colors - deep brown and red), perforation L12 1/2 instead of comb 11 1/2x12, affixed over Goznak embossed card, VF, a rarity, only a few were produced for presentation . |