6 cents stamp (used) HemisFair '68 [map of the Americas] issued in United States of America (USA) 1968
40 cents stamp (used) commemorating the European Postal and Telecommunications Conference EUROPA 1959
60 milliemes stamp (used) Zueitina oil terminal and tanker with pipeline map through desert issued by Libya 1968
Set of two stamps (used) 6 cents National Rubber Research Conference 1960 [map of Malaysia with rubber plant seedling] 1960