This commemorative stamp from Mexico was issued in 1969 to celebrate the inauguration of the Sistema de Transporte Colectivo (Mexico City Metro), one of Latin America’s largest urban transit systems. The design features a stylized orange metro train with the bold “M” symbol of the metro network. Its modern graphic style reflects the technological progress and urban expansion of Mexico City during the late 1960s. The stamp marks a historic milestone in public transportation for the capital. For collectors, it is a notable transportation-themed issue highlighting urban infrastructure and modern design.