United Nations (UN - New York) - 1989 - Nb 543/544 - Environment
Mint never hinged
Yvert No. 543/544
United Nations (UN - New York) - 1989 - Nb 563/568 - Human Rights
Mint never hinged
Yvert No. 563/568
United Nations (UN - New York) - 1991 - Nb 591/592 - Childhood - Children's drawings
Mint never hinged
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United Nations (UN - New York) - 1991 - Nb 588/589 - Sights
Mint never hinged
Yvert No. 588/589
United Nations (UN - New York) - 1990 - Nb 572/573 - Flora
Mint never hinged
Yvert No. 572/573
United Nations (UN - New York) - 1992 - Nb 615/616 - Science
Mint never hinged
Yvert No. 615/616
United Nations (UN - New York) - 1992 - Nb 613/614 - Telecommunications
Mint never hinged
Yvert No. 613/614
United Nations (UN - New York) - 1993 - Nb 632/633 - Health
Mint never hinged
Yvert No. 632/633
United Nations (UN - New York) - 1993 - Nb 626/627 - Health
Mint never hinged
Yvert No. 626/627
United Nations (UN - New York) - 1993 - Nb 645/648 - Environment
Mint never hinged
Yvert No. 645/648
United Nations (UN - Geneva) - 1993 - Nb 259/262 - Environment - Polar regions
Mint never hinged
Yvert No. 259/262
United Nations (UN - Vienna) - 1993 - Nb 176/179 - Environment
Mint never hinged
Yvert No. 176/179
United Nations (UN - Vienna) - 1996 - Nb 225/228 - Environment - Flowers
Mint never hinged
Yvert No. 225/228
United Nations (UN - Geneva) - 1993 - Nb 249/254 - Human Rights
Mint never hinged
Yvert No. 249/254
United Nations (UN - New York) - 1993 - Nb 635/640 - Human Rights
Mint never hinged
Yvert No. 635/640
United Nations (UN - Vienna) - 1993 - Nb 166/171 - Human Rights
Mint never hinged
Yvert No. 166/171
United Nations (UN - Vienna) - 1996 - Nb 238/239 - Childhood
Mint never hinged
Yvert No. 238/239
United Nations (UN - New York) - 1996 - Nb 708/709 - Childhood
Mint never hinged
Yvert No. 708/709
United Nations (UN - Vienna) - 1997 - Nb 242/245 - Endangered species - WWF
Mint never hinged
Yvert No. 242/245
United Nations (UN - New York) - 1994 - Nb 659/662 - Environment
Mint never hinged
Yvert No. 659/662
United Nations (UN - Vienna) - 1994 - Nb 190/193 - Environment
Mint never hinged
Yvert No. 190/193
United Nations (UN - Geneva) - 1992 - Nb 235/240 - Human Rights
Mint never hinged
Yvert No. 235/240
United Nations (UN - New York) - 1992 - Nb 620/625 - Human Rights
Mint never hinged
Yvert No. 620/625