Berlin
Visar nu: Berlin - Postfrimärken (1948 - 1990) - 1 frimärken.
1971
The 150th Anniversary of Herman von Helmholtz' Birth - Scientist
27. augusti WM: Inga Perforering: 14
![[The 150th Anniversary of Herman von Helmholtz' Birth - Scientist, Typ KG]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Berlin/Postage-stamps/KG-s.jpg)
