This striking 1960 issue from Katanga marks the historic secession of the mineral-rich province during the Congo Crisis. Originally a Belgian Congo map stamp, it was overprinted with bold inscriptions “INDEPENDANCE DE L’ETAT DU KATANGA” and dated “1 JUILLET 1960,” commemorating Katanga’s brief declaration of independence. The map design highlights key cities such as Léopoldville, Elisabethville, and Stanleyville, offering strong geographical context. Printed by Courvoisier S.A., this stamp is a classic example of political overprints in African philately. Its historical significance and transitional nature make it highly desirable for collectors of post-colonial Africa.