Meteorological Observatory Potsdam
63%
| Country: | Germany, Democratic Republic |
|---|---|
| Issue: | Meteorological Observatory Potsdam |
| Date: | 1968-01-24 |
| Print: | Offset and Lithography |
| Perforation: | comb 13½ x 13 |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 55 East German pfennig |
| Print run: | 4000000 |