Mexico, 1980 AD., Mexico City mint, 5 Pesos, KM 485.

Mexico, Mexico city mint, 1980 AD.,
5 Pesos (27 mm / 10,19 g), copper-nickel, 10,25 g. theor. mint weight, mintage 266,899,999 , axes coin alignment ↑↓ (180°), plain edge with incuse legend " INDEPENDENCIA Y LIBERTAD" ,
Obv.: ESTADOS UNIDOS MEXICANOS , Mexico's national symbol, an eagle with a snake in beak, perched on cactus, facing left, enclosed in a circle formed by the legend and a wreath - El Escudo Nacional con el águila de perfil hacia la izquierda y devorando a la serpiente con el pico; está parada sobre un nopal y abajo las ramas de laurel y encino atadas por un listón. La leyenda “Estados Unidos Mexicanos”.
Rev.: M° / 5 / $ / QUETZALCOATL / 1980 , native Aztec sculpture to lower right of mint mark, value and dollar sign, date below.
KM 485 .

Year / Mint Mark / Mintage
1980 Mo 266,899,999
1981 Mo 30,500,000
1982 Mo 20,000,000
1982 Mo 1,051 (proof)
1983 Mo 7 (proof)
1984 Mo 16,300,000
1985 Mo 76,900,000

Quetzalcoatl, or Ketzalkoatl, (Classical Nahuatl: Quetzalcohuātl) is a Mesoamerican deity whose name comes from the Nahuatl language and has the meaning of "feathered serpent". The worship of a feathered serpent deity is first documented in Teotihuacan in the first century BC or first century AD. That period lies within the Late Preclassic to Early Classic period (400 BC–600 AD) of Mesoamerican chronology, and veneration of the figure appears to have spread throughout Mesoamerica by the Late Classic (600–900 AD).
Among the Aztecs, whose beliefs are the best-documented in the historical sources, Quetzalcoatl was related to gods of the wind, of Venus, of the dawn, of merchants and of arts, crafts and knowledge. He was also the patron god of the Aztec priesthood, of learning and knowledge. Quetzalcoatl was one of several important gods in the Aztec pantheon along with the gods Tlaloc, Tezcatlipoca and Huitzilopochtli.