Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1396
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 was shaped in construction; it is shouldered by usewear. It is oval in shape. The stone material is a vesicular basalt with quartz inclusions. It is coarse grained.

This grinding or milling stone's ventral side has heavy use with dense pecking (this may also be the natural vesicular surface) and slight polish. Its dorsal side is smooth and may be sandblasted with some pecking. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. The perimeter sides and ends are rough and pecked as a continuation from the ventral side. Pecking increases the grinding surface for greater traction.

Length - 4.370", Width - 3.582", Depth - 1.314", Weight - 1.6 lbs.

Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Basalt, vesicular
Culture Kumeyaay / DiegueƱo
Place of Origin San Diego County
Caption Dorsal