Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1273
Object Name Mano
'Iipay Aa Name hapiichaa
Description A whole hand-held grinding stone, also known as a mano in Southern California archaeology. This bifacial stone is used with one hand for grinding and appears in a natural form, unshaped. It is square in shape. The stone material is a pegmatic quartz with gold (weathered biotite) mica. It is coarse grained.

This grinding or milling stone ventral side is flat and pecked; pecking increases the grinding surface for greater traction. This grinding stone dorsal side is somewhat polished, mostly rough cortex. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Wear marks on the perimeter sides indicate some use. There is battering on the ends.

Length - 3.700", Width - 3.622", Height - 2.125", Weight - 1.611 lbs

Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Quartz
Culture Kumeyaay / DiegueƱo
Place of Origin San Diego County
Caption Mano, pegmatic quartz: dorsal view, side A (some polish, humped cortex).