This striking 50 centimes stamp commemorates the declaration of independence of Katanga on 31 July 1960, a pivotal and controversial moment following the independence of the Belgian Congo. The design features a bold red map of the Congo with key cities such as Léopoldville, Stanleyville, and Elisabethville marked, emphasizing the geopolitical landscape of the era. The dramatic overprint “Indépendance de l'État du Katanga” reflects the short-lived secessionist state. Printed by Courvoisier S.A., this issue is highly sought after for its historical significance and political context during the Congo Crisis.