DescriereThe Soviet Union 1969 CPA 3762 sheet of 1 (Mendeleev and Periodic Law).jpg
Русский: Блок СССР: Менделеев и Периодический закон. Серия: 100-летие Периодического закона химических элементов Дмитрия Ивановича Менделеева (1834–1907)
English: USSR sheet of 1: Mendeleev and Periodic Law. Series: Centenary of the Periodic Law (Classification of Chemacel Elements), Formulated by Dimitri Mendeleev (1834–1907)
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Scanned 600 dpi by User Matsievsky from personal collection
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USSR Post
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