Czechoslovakia
0.44 - 0.53$
price on 06.12.2022
| Country: | Czechoslovakia |
| Type: | Postage stamps |
| Series: | Radioinventors |
| Nominal: | 2 Kčs |
| Year: | 1959 |
| Size: | 44 x 27 mm |
| Perforation: | comb 11¾ x 11¼ |
| Mintage: | 860,000 |
Radioinventors
 Nikola Tesla 0.48$ |  Alexander S. Popov 0.05$ |  Eduard Branly 0.12$ |  Guglielmo Marconi 0.07$ |
 Heinrich Hertz 0.08$ |  E. H. Armstrong 0.44$ |