United Nations (NY) 1996 'Habitat II' Conf on Human Settlements strip of 5 unmounted mint, SG 698a
United Nations (NY) 1996 'Habitat II' Conf on Human Settlements strip of 5 unmounted mint, SG 698a
United Nations (NY) 1996 'Habitat II' Conf on Human Settlements strip of 5 unmounted mint, SG 698a