Detail of Structure IV, North terrace at Level 2

Becan:  Decorative panel on Structure IV

"The wall treatment adjacent to the west doorway, and presumably also to the east doorway, was probably less elaborate or less forcefull originally than that at the center, but the vagaries of preservation have made it now much more interesting with well preserved sculptured relief panels and a step in the form of a mask."

(Potter, p. 25)