USSR
0.45 - 0.54$
price on 21.03.2023
| Country: | USSR |
| Type: | Postage stamps |
| Series: | Pioneers of Civil Aviation |
| Nominal: | 6 k |
| Year: | 1963 |
| Size: | 40 x 28 mm |
| Perforation: | comb 11½ |
| Mintage: | 3,000,000 |
Pioneers of Civil Aviation
 A.F. Mozhaisky (1825-1890) and his Monoplane 0.45$ |  P.N. Nesterov (1887-1914) and Nesterov's Loop 0.07$ |  Nikolay Yegorovitch Zhukovsky (1847-1921) and Aerodynamics 0.24$ |