Issued by Mexico in 1978, this airmail commemorative honors the 50th anniversary of the death of revolutionary leader and President Álvaro Obregón. The stamp features a formal painted portrait emphasizing his role in shaping post-revolutionary Mexico. Produced for aerial postal use, it belongs to Mexico’s historical-personality commemorative issues of the late 20th century. The clean typography and classic portrait style make it attractive for political history and leadership thematic collections. A notable addition for collectors specializing in Mexican Revolution or presidential commemoratives.