This striking 1958 issue from the République de Guinée features a banana plant (La Banane), symbolizing one of the country's key agricultural exports. Originally part of the French West Africa (Afrique Occidentale Française) series, the 20 franc stamp was overprinted in red with “REPUBLIQUE DE GUINEE” and a new face value of “45F” following Guinea’s independence. The design, in black, red, and green hues, blends colonial craftsmanship with emerging national identity. Such overprints mark a transitional period in West African philately, making them prized by collectors for their historical context.