Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1322
Object Name Mano
'Iipay Aa Name hapiichaa
Description A whole hand-held grinding stone, also known as a mano in Southern California archaeology. There is a loss on one side that is noticeable, but stable and appears to be old. 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 gold biotite mica and pink feldspar. It is coarse grained.

This grinding or milling stone ventral side is flattened and shows heavy use. This grinding stone dorsal side is flattened, heavily used and shows an area of loss (about 1/8 of the stone). 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 suggest grinding. The stone appears to be pecked on both ventral and dorsal surfaces; pecking increases the grinding surface for greater traction.

Dimensions:
Length - 4.763", Width - 3.661", Height - 1.811", Weight - 2.104 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, flat working surface).