Issued in 1990, this Costa Rican commemorative stamp celebrates the Cincuentenario de la Universidad de Costa Rica—the university’s 50th anniversary. The modernist design features the number “50” stylized in bold red, yellow, and blue geometric shapes, symbolizing vitality, knowledge, and progress. The clean layout and vivid colors reflect the university’s forward-looking vision and its pivotal role in Costa Rica’s academic and social development since its founding in 1940. The stamp carries a denomination of 18 colones and was printed by Casa Gráfica S.A.