U

United Nations
Geneva 1987-93. 119 very fine used stamps +2 mini ...
Ref: 27311

United Nations
Geneva 1989-93. Human Rights issues in sheetlets o...
Ref: 20346

United Nations
Geneva Office 1988-93. 106 fine used stamps in ful...
Ref: 19941

United Nations
New York HQ. 24 mint stamps (much unm), complete a...
Ref: 13468

Upper Volta
1902 10cts fine mint with overprint double, not li...
Ref: 25985

Upper Volta
1920-28. 70+ mint and used stamps. Good run of min...
Ref: 23273

Upper Volta
1959-84. 150+ unmounted mint stamps +6MS's with mu...
Ref: 27066

Upper Volta
1972-6. 89 unmounted mint stamps +24 mini sheets. ...
Ref: 16662

Uruguay
1966 100 Pesos Air "Bird" stamp ("El Chaja"), 22 r...
Ref: 179