7th International Crystallography Congress, 1966, Moscow

6 k 1966
USSR
7th-international-crystallography-congress,-1966,-moscow
0.12 - 0.14$
price on 15.10.2022
Country:USSR
Type:Postage stamps
Series:International Congresses, 1966
Nominal:6 k
Year:1966
Size:40 x 28 mm
Perforation:comb 11½
Mintage:4,000,000

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