Issued by Mozambique under Portuguese administration in 1972, this 4$00 commemorative honors the 400th anniversary of Luís de Camões’ epic poem “Os Lusíadas” (1572–1972). The design showcases Ilha de Moçambique, an important early Portuguese stronghold on Africa’s east coast, illustrated with fortifications, early colonial buildings, and historic caravels sailing offshore. The lower panel features a poetic excerpt from Os Lusíadas, linking the island to the legendary Age of Discoveries. A richly engraved and beautifully colored issue, it appeals strongly to collectors of Portuguese colonial history, literary commemoratives, and maritime themes.