Stamp: Aktinometer (Germany, Democratic Republic 1968)
Aktinometer (Germany, Democratic Republic 1968)
24 January (Germany, Democratic Republic ) within release Observatory goes into circulation Stamp Aktinometer face value 10 East German pfennig
| Stamp Aktinometer in catalogues | |
|---|---|
| Michel: | Mi:DDR 1343 |
| Yvert et Tellier: | Yt:DDR 1037 |
Stamp is vertical format.
Also in the issue Observatory:
- Stamp - Aktinometer face value 10;
- Stamp - Weather Satellite face value 20;
- Stamp - Influence of weather on agriculture face value 25;
- Se-tenant - Meteorological Observatory Potsdam face value 35;
- Se-tenant - Meteorological Observatory Potsdam face value 55;
- Se-tenant - Meteorological Observatory Potsdam face value 30;
- Se-tenant - Meteorological Observatory Potsdam face value 45;
- Se-tenant - Meteorological Observatory Potsdam face value 55;
Stamp Aktinometer it reflects the thematic directions:
An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysics, oceanography and volcanology are examples of disciplines for which observatories have been constructed
