Technical and Scientific Knowledge Society
60 h 1963
Czechoslovakia
0.07 - 0.08$
price on 18.02.2023
| Country: | Czechoslovakia |
| Type: | Postage stamps |
| Series: | Technical and Scientific Knowledge Society |
| Nominal: | 60 h |
| Year: | 1963 |
| Size: | 27 x 44 mm |
| Perforation: | comb 11½ x 12 |
| Mintage: | 4,810,000 |