LOCATION First reported by Blom and La Farge in 1925 among the sculptures on the plaza at Tonina. By 1944 it was in the museum in Tuxtla Gutierrez.
CONDITION When first found, Monument 16 was broken into three pieces. The glyphs have suffered some weathering, with the result that few fine details remain.
MATERIAL Yellow sandstone.
SHAPE Circular, with edges dressed but plain.
CARVED AREAS On the top, a row of 16 glyphs is arranged around the periphery, and a large glyph is in the center.
PHOTOGRAPH von Euw, 1976.
DRAWING Mathews, based on a preliminaty drawing checked against the original.