Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1374
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 square in shape. The stone material is a granitic, leucocratic plagiogranite with muscovite mica. It is fine grained.

This grinding or milling stone's ventral side is heavily pecked and grooved; pecking increases the grinding surface for greater traction. Its dorsal side is smooth and polished. 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 are squared from use.

Dimensions:
Length - 3.779", Width - 3.346", Height - 1.456", Weight - 1.264 lbs.

Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Granitic
Culture Kumeyaay / DiegueƱo
Place of Origin San Diego County
Caption Mano, leucocratic granite: dorsal view, side A (smooth, polished).