Issued in 1955 by Spanish Guinea, this pair of charity stamps commemorates the centenary of the creation of the Apostolic Prefecture in the territory. The 50 céntimos value (black) depicts a native priest in prayer before an altar, symbolizing the spread of Catholic missions. The 25+10 céntimos value (violet) shows the sacrament of baptism, with a hand pouring holy water from a shell over a kneeling figure. Both stamps highlight the role of faith and missionary work in the region. Printed by F.N.M.T. Madrid, they were semi-postal issues with surcharges directed toward religious and charitable purposes.