Gravitational waves
26%
| Country: | Germany, Federal Republic |
|---|---|
| Issue: | Astrophysics 2017 |
| Date: | 2017-12-07 |
| Paper: | fluorescent |
| Print: | Offset lithography |
| Perforation: | comb 13¾ |
| Emission: | Commemorative |
| Format: | Full Pane |
| Face Value: | 10*70 Euro cent |