Sheets of German Democratic Republic, 1978 all added
| Issuer | Date | Desc | State | ||
| - |  |
German De.. Republic | 3/21/1978 | Intercosmos 1978, sheet of 1 type | all added |
| - |  |
German De.. Republic | 7/25/1978 | Drawings from The Graphic Collection Of The Berlin Museums, sheet of 6 types | all added |