Letter Writing Week.
96%
| Country: | Soviet Union, USSR |
|---|---|
| Issue: | Letter Writing Week |
| Date: | 1991-09-04 |
| Paper: | Unknown |
| Print: | Photogravure |
| Size: | 18.5 x 26 |
| Perforation: | frame 12 x 11½ |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 7 Russian kopek |
| Print run: | 2600000 |