Issued by Canada in 1980 to mark the centenary of the adoption of “O Canada” (1880–1980), this 17¢ commemorative features a bold, modernist interpretation of the national anthem’s musical score. The design combines stylized staff lines and musical notation with strong horizontal colour bands, reflecting late-20th-century Canadian graphic design. This stamp celebrates Canada’s musical heritage and national identity rather than a portrait, making it a distinctive thematic issue. Popular with collectors of music on stamps, national anthems, and Canadian modern design. A well-recognized commemorative from Canada Post’s cultural heritage issues.