Issued by Spanish Guinea in 1958, this semi-postal stamp carries a denomination of 10 céntimos with an additional 5 céntimos surcharge dedicated to indigenous welfare programs. The design features a missionary figure raising a cross, surrounded by African children, symbolizing education, faith, and social outreach. The inscription “1883 Pro-Indígenas 1958” commemorates efforts toward indigenous support dating back to the late 19th century. Printed in a rich monochrome tone, it reflects the artistic and cultural narratives of Spanish colonial Africa. A meaningful piece for collectors of charity stamps, colonial issues, and African postal history.