This attractive semi-postal set was issued for Día del Sello Colonial (Colonial Stamp Day). The design features a finely engraved seabird (cormorant) perched on a coastal rock, symbolizing the Atlantic shoreline of the Spanish territory of Ifni. The denominations include 5c +5c, 10c +5c, and 60c +15c, with surtaxes benefiting colonial-related causes. Printed by F.N.M.T., the set is admired for its clean typography and classic mid-century Spanish colonial style. A desirable addition for collectors of Spanish colonies, bird thematics, and semi-postal issues.