USSR
Viser nu USSR - Post frimærker (1923 - 1991) - 1 frimærker.
1969
The 100th Anniversary of Mendeleev's Periodic Law of Elements
20. juni VM: Ingen Arkstørrelse: 15 Design: V. Pimenov Perforeringer: 12¼ x 12
![[The 100th Anniversary of Mendeleev's Periodic Law of Elements, type DUO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DUO-s.jpg)
