Maya Stone Effigy Hacha, Late Classic, circa AD 550 - 950

Lilian S. Zalk, Los Angeles, acquired in the 1940s 
Thence by family descent to the present owner

With a forceful open mouth and sharply downturned projecting tongue, this powerful skeletal head is carved with a finely modeled jawbone and the hinge connected to the ocular area. The nose is indicated by a notch, and the eyes are narrowed with arched lids above;  with remains of red pigment in the roughened lower neck area. 

For a similar example, see Ted J.J. Leyenaar, and Lee A. Parsons, Uluma: The Ballgame of the Maya and Aztecs, Leiden, 1988, p. 181, fig. 86.