Mongolia
| Country: | Mongolia |
| Type: | Postage stamps |
| Series: | Exploration of the universe |
| Nominal: | 80 Mongolian möngö |
| Year: | 1964 |
| Size: | 65 x 25 mm |
| Perforation: | comb 11 |
Exploration of the universe
 Lunik 1 0.12$ |  Wostok 5 and 6 0.12$ |  Weather satellite Tiros 1963 0.14$ |  Cosmos 0.11$ |
 Mars probe 0.11$ |  Luna 4 |  Satellite Echo 2 1960 |  Telescope 2.3$ |