Issued in 1965 as part of Mexico’s promotional series for the 1968 Mexico City Olympic Games, this 1.20-peso airmail stamp features a striking depiction of the Aztec Calendar Stone (Piedra del Sol), symbolizing Mexico’s deep cultural heritage. The Olympic rings and official inscription “XIX Juegos Olímpicos 1968” highlight the nation’s preparation for hosting the first Olympics ever held in Latin America. Designed by R. Muñoz L., the stamp blends archaeological artistry with modern sporting imagery. A desirable pre-Olympic issue, it remains popular among collectors of Olympic philately and Mexican airmail classics.