Year/Period |
1971 |
Country |
German Democratic Republic (GDR) |
Category |
Various |
Subcategory |
Stamps |
Theme |
Microscope, Carl Zeiss |
State |
Mint |
Inventory number |
SMD 2 |
VEB Carl Zeiss, Jena, 1846-1971.
Geomat; Planetarium; Mikroval.

Robert-Koch-Ehrung, GDR
1982

Christiaan Huygens

TNO Metaal, Delft, the Netherlands

Leiden discoveries
1967