USSR
0.9 - 1.1$
price on 09.03.2023
| Country: | USSR |
| Type: | Postage stamps |
| Series: | History of Russian Aircraft (4th series) |
| Nominal: | 20 k |
| Year: | 1978 |
| Material: | coated |
| Size: | 37 x 52 mm |
| Perforation: | comb 12 x 11½ |
| Mintage: | 4,000,000 |
History of Russian Aircraft (4th series)
 Polikarpov U-2 (Po-2) 1928 0.29$ |  Kalinin K-5 (1929) 0.31$ |  Tupolev TB-3 (ANT-6) 1930 0.33$ |  Putilov Stal-2 (1931) 0.05$ |
 MBR-2 Hydroplane (1932) 0.3$ |  I-16 fighter plane (1934) 0.9$ |