50th Anniversary of Institute of Mathematical Machine.
93%
| Country: | Armenia |
|---|---|
| Issue: | Industry |
| Date: | 2007-03-12 |
| Print: | Offset and Lithography |
| Size: | 31.75 x 31.75 |
| Perforation: | comb 12½ |
| Format: | Stamp |
| Face Value: | 120 Armenian dram |
| Print run: | 50000 |