Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1283
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 oval in shape. The stone material is a quartzite with gold (weathered biotite) mica. It is medium grained. There are two distinct colors on each face.

This grinding or milling stone ventral side is polished. This grinding stone dorsal side is pecked. Distinct striations appearing on the ventral and perimeter surfaces suggest that this mano was used in an undulating or back and forth movement. Worn marks on the perimeter sides also indicate grinding. The stone appears to be pecked on the dorsal surface and perimeter ends; pecking increases the grinding surface for greater traction.

Dimensions:
Length - 4.212", Width - 3.307", Height - 2.086", Weight - 1.844 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: ventral view, side A (polish and striations on surface).