70th Birth Anniversary of M.V. Keldysh issue of Russia
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Short desc: 70th Birth Anniversary of M.V. Keldysh
Issuer: Russia Date: 2/10/1981 Occasion: Mstislav Keldysh / M.V. Keldysh birth Number/Year: 70 Consists of 1 stamp: (See stamps as list) 4k d=M.V. Keldysh All are perf=11.5x12 Record of changes |
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