Quirigua: Monument 6

Quirigua: South Side, Stela F (Monument 6) [January 8, 2004]

"Furthermore, Monument 6 is the first to depict Cauac Sky wearing the distinctive narrow beard seen on all of his subsequent portraits. Personages with beards are rare in Maya art. Although several carved portraits of rulers at nearby Copan are shown with beards (Stela B, 731 A.D.; Stela D, 736 A.D.) none are of the characteristic form used in Cauac Sky's portraits."

Robert J. Sharer, Quirigua: A Classic Maya Center & Its Sculptures, Carolina Academic Press, 1990, p. 39