Year/Period |
1986 |
Country |
Japan |
Category |
Various |
Subcategory |
Stamps |
Theme |
11th International Congress of Electron Microscopy, Kyoto, Japan |
State |
First-day cover |
Inventory number |
SMD 20 |
First-day cover bearing a stamp tied by a cancellation showing the date of the official first day of issue of that stamp.
Design: Structure of electron microscopy & the image of an atom.
Robert Koch, Cuba
1993
Leipziger Messe, GDR
1955
Robert Koch, France
1982
Robert Koch, Nobel Prize, Germany
2005