The 100th Anniversary of Mendeleev's Periodic Law of Elements 1969
Now showing: USSR - Postage stamps - 1969 - The 100th Anniversary of Mendeleev's Periodic Law of Elements - 1 stamps.
1969
The 100th Anniversary of Mendeleev's Periodic Law of Elements
20. June WM: None Sheetsize: 1 Design: V. Pimenov Perforation: 12 x 12ΒΌ
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