"Impossible Dice Construction" by M.C. Escher (1898-1972)
96%
| Country: | Austria |
|---|---|
| Issue: | Int. Mathematical Congress |
| Date: | 1981-09-14 |
| Print: | Photogravure |
| Size: | 30 x 39 |
| Perforation: | comb 14¼ x 13¾ |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 4 Austrian schilling |
| Print run: | 3400000 |