Issued on 10 June 1979, this Portuguese stamp commemorates the "Dia de Portugal, de Camões, e das Comunidades Portuguesas" (Day of Portugal, Camões, and the Portuguese Communities). The design, based on a photograph by Orlando Batista, features the Portuguese national flag in motion, symbolizing patriotism and unity. This annual celebration honors the memory of poet Luís de Camões, author of Os Lusíadas, and acknowledges Portuguese communities worldwide. With a denomination of 6.50 escudos, it reflects the country’s cultural pride and diasporic bonds.