Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1240
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 rectangular in shape. The stone material is a granitic (granite) with muscovite mica and inclusions of pink feldspar. It is coarse grained.

This grinding or milling stone ventral and dorsal sides are smooth and polished. It may actually have been used as a polishing rock due to its size and the pattern of wear. The dorsal side is very dark and perhaps stained. Vertical striations appearing on the surfaces suggest that this mano was used in an undulating or back and forth movement. Usewear and rough marks on the perimeter sides suggest grinding and are perhaps pecked. Pecking increases the grinding surface for greater traction.

Dimensions:
Length - 3.346", Width - 2.874", Height - 1.968", Weight - 1.119 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, granitic: ventral view, side A (polished surface; pecked perimeter)