Sheets of Mongolia, 1969
| Issuer | Date | Desc | State | ||
| - | no image | Mongolia | 3/25/1969 | empty sheet (#16779) | incomplete |
| - | no image | Mongolia | 7/11/1969 | empty sheet (#16780) | incomplete |
| - |  |
Mongolia | 8/20/1969 | empty sheet (#16781) | incomplete |
| - | no image | Mongolia | 12/6/1969 | empty sheet (#16782) | incomplete |