| Issuer: Mongolia
Issue: Soviet-Mongolian Space Flight Date: 3/22/1981 (1981 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 4t d=Cosmonauts Dzhanibekov and Gurragchaa |
External links: Colnect 249151..n_space_flight Record of changes |
| Issuer: Mongolia
Issue: Soviet-Mongolian Space Flight Date: 3/22/1981 (1981 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 4t d=Cosmonauts Dzhanibekov and Gurragchaa |
External links: Colnect 249151..n_space_flight Record of changes |
