Почтовые марки Монголии
| Серия: Helicopters. 1987 г. | |
 | 20m - Mil Mi-V12 helicopter |
 | 30m - Westland WG-30 helicopter |
 | 40m - Bell 206L LongRanger II helicopter |
 | 50m - Kawasaki-Hughes 369HS helicopter |
 | 60m - Kamov Ka-32 helicopter |
 | 80m - Mil Mi-17 helicopter |
 | 120m - Mil Mi-10K helicopter |
