This is a beautiful reproduction of the mask found in Río Azul, Petén, Guatemala. The original mask was made of Fuchsite, shell and it was colored with cinnabar. It represents Zak Balam, who was alive in 392 A.D.
Studies of the mask have found a glyph incised on the back that identifies the site of Rio Azul. It is currently housed in a private collection in Germany.