Sheets of Mongolia, 1986
| Issuer | Date | Desc | State | ||
| - |  |
Mongolia | 4/20/1986 | empty sheet (#16888) | incomplete |
| - |  |
Mongolia | 5/30/1986 | empty sheet (#16889) | incomplete |
| - |  |
Mongolia | 8/23/1986 | empty sheet (#16890) | incomplete |
| - |  |
Mongolia | 11/18/1986 | empty sheet (#16891) | incomplete |
| - |  |
Mongolia | 11/30/1986 | empty sheet (#16892) | incomplete |