This 1 Peso green commemorative stamp was issued by Paraguay in 1940 to mark the 50th anniversary (1890–1940) of the Pan-American Union. The design features a finely engraved map of the Americas, symbolizing continental unity and cooperation. Inscribed with “Tierra de Hombres Libres” (“Land of Free Men”), it highlights Paraguay’s pride in independence and its role within the Pan-American community. Printed by the American Bank Note Company, this classic issue reflects the strong engraving quality and international collaboration of the era. A historically significant piece, it appeals to collectors of Pan-American themes, Latin American history, and classic commemoratives.