Issued in 1995, this Colombian airmail stamp commemorates the 50th anniversary of the founding of the United Nations (1945–1995). Designed by Alirio Campos and printed by Carvajal S.A., the 750-peso issue features a bold modernist design dominated by the number “50” intertwined with the UN emblem. The gradient pillar in red, yellow, and orange symbolizes progress and unity, while the blue background reflects peace and global cooperation. It celebrates Colombia’s commitment to the principles of the UN and is a fine example of late 20th-century Latin American commemorative design.