Sheets of Mongolia, 1974
| Issuer | Date | Desc | State | ||
| - |  |
Mongolia | 3/15/1974 | 50th Anniversary of First Mongolian Stamps, sheet of 1 type | all added |
| - |  |
Mongolia | 4/5/1974 | 100th Anniversary of UPU, sheet of 1 type | all added |
| - |  |
Mongolia | 12/15/1974 | Environmental Protection 1974, sheet of 1 type | all added |
| - |  |
Mongolia | 12/31/1974 | 100th Anniversary of UPU b, sheet of 1 type | all added |