Issued by Chile in 1962, this elegant airmail semi-postal stamp honors Alonso de Ercilla, the Spanish soldier and poet famed for his epic La Araucana, which recounts the conflicts between Spaniards and the Mapuche people. The design, in warm brown and rose hues, features a detailed profile portrait of Ercilla in Elizabethan attire, symbolizing the deep historical and cultural ties between Spain and Chile. The inscription “España a Chile” underscores this shared heritage, while the “E°0.10 + 0.10” denomination indicates a charitable surcharge for cultural causes.