Info| Date | 1985, 01 VIII |
|---|---|
| Value | 20 Ft |
| Catalog no. | Mi 3779, BL179 Sc 2945 SG MS3654 Y&T BF181 |
| Topic | OSCE |
| Occasion | 10th Anniversary of the Helsinki Final Act |
| Description | The Helsinki Final Act was signed by 35 nations in the Finlandia Hall in Helsinki on August 1, 1975. On the frame the flags of the participating countries, among them Poland. |
