Sheets of Mongolia, 1989
| Issuer | Date | Desc | State | ||
| - |  |
Mongolia | 5/10/1989 | empty sheet (#16909) | incomplete |
| - |  |
Mongolia | 5/10/1989 | empty sheet (#16910) | incomplete |
| - |  |
Mongolia | 5/10/1989 | empty sheet (#16912) | incomplete |
| - |  |
Mongolia | 5/15/1989 | empty sheet (#16911) | incomplete |
| - |  |
Mongolia | 7/7/1989 | PHILEXFRANCE '89 b, sheet of 3 types | |
| - |  |
Mongolia | 7/25/1989 | sheet of 1 type | |
| - |  |
Mongolia | 8/20/1989 | Olympics 1988 winners, sheet of 1 type | |
| - |  |
Mongolia | 9/20/1989 | 30th Anniversary of Co-operative Movement, sheet of 1 type | incomplete |
| - |  |
Mongolia | 10/20/1989 | Ice Sports, sheet of 1 type | |
| - |  |
Mongolia | 11/17/1989 | empty sheet (#16914) | incomplete |
| - |  |
Mongolia | 12/10/1989 | sheet of 1 type |