Year/Period |
1971 |
Country |
West Germany (FRG) |
Category |
Various |
Subcategory |
Stamps |
Theme |
Microscope, research |
State |
Mint |
Inventory number |
SMD 54 |
100 years material research in Berlin, 1871-1971.
Robert Koch, Hungary
1982
W.H.O. (World Health Organisation), Gibraltar, UK
1968
Carl Zeiss, Germany
De Loupe
1946-1966