This striking 1957 commemorative stamp from Spanish Guinea was issued for Día del Sello (Stamp Day). The design features a powerful rendering of an African elephant (Elephas), symbolizing strength and the rich natural heritage of Equatorial Africa under Spanish administration. With a denomination of 15+5 céntimos, it also carried a semi-postal surcharge to support postal causes. Printed by the F.N.M.T. (Fábrica Nacional de Moneda y Timbre) in Madrid, the stamp remains a prized piece among colonial-era philatelic issues. Collectors value it for its artistic engraving, strong historical context, and appeal to both African wildlife and Spanish colonial themes.