Sheets of Mongolia, 1964 incomplete
| Issuer | Date | Desc | State | ||
| - |  |
Mongolia | 2/12/1964 | Winter Olympics 1964, sheet of 1 type | incomplete |
| - |  |
Mongolia | 4/30/1964 | Olympics 1964, sheet of 1 type | incomplete |
| Issuer | Date | Desc | State | ||
| - | |
Mongolia | 2/12/1964 | Winter Olympics 1964, sheet of 1 type | incomplete |
| - | |
Mongolia | 4/30/1964 | Olympics 1964, sheet of 1 type | incomplete |