Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1214
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 quartzite with a powdery white substance that appears to have spread across the stone. It is fine grained.

This grinding or milling stone ventral side is polished and somewhat oily stained. This grinding stone dorsal side is somewhat pecked with a white powdery growth or accretion, such as caliche or salts, leaching out. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. There appears to be some removal of cortex on the ends, perhaps due to usewear. The stone appears to be pecked on the dorsal and perhaps perimeter surfaces; pecking increases the grinding surface for greater traction.

Length - 3.858", Width - 3.149", Height - 1.968", Weight - 1.415 lbs

Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Quartzite
Culture Kumeyaay / DiegueƱo
Place of Origin San Diego County
Caption Mano, quartzite: dorsal view, side A (pecking, accretion and stains)