This 6 pesetas Spanish stamp, issued in 1966, depicts El Chasqui, the swift-footed messengers of the Inca Empire. Chasquis were essential to Inca communication, running vast distances across the Andes to relay messages using quipus (knotted cords) and musical signals like the pan flute shown here. The artwork captures a runner in traditional attire, adorned with geometric patterns and feathered headgear. Part of Spain’s series highlighting historical postal themes, it celebrates ancient communication systems predating European contact.