Sheets of United Nations - UN offices in Vienna, 1990
| Issuer | Date | Desc | State | ||
| - |  |
UN offices in Vienna | 6/26/1990 | 45th Anniversary of the UN, sheet of 2 types |
| Issuer | Date | Desc | State | ||
| - | |
UN offices in Vienna | 6/26/1990 | 45th Anniversary of the UN, sheet of 2 types |