Issued by Mexico in 1981, this commemorative 1.60 peso stamp honors the 15th Pan-American Railway Congress. The design features a modern red locomotive symbolizing progress and connectivity, alongside a globe highlighting the Americas, with rail lines linking North and South America. The inscription "XV Congreso Panamericano de Ferrocarriles 1981" marks the event, which emphasized cooperation and development of railway infrastructure across the continent. Designed by A. Mauro and printed by T.I.E.V., the stamp reflects Mexico’s role as host of this important international railway congress.