Info| Date | 1970, 01 VII |
|---|---|
| Value | 20 Pfg. |
| Catalog no. | Mi 1591 Sc 1222 SG E1314 Y&T 1272 |
| Topic | Potsdam Agreement |
| Occasion | 20 years Treaty of Zgorzelec |
| Description | 30 years recognition of the Oder-Neisse border between Poland and the GDR. The stamp shows the coats of arms and the flags of the German.Dem.Rep. and Poland. |
