|'Iipay Aa Name||hapiichaa|
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 ovoid in shape. The stone material is a volcanic with gold biotite mica. It is medium grained.
This grinding or milling stone ventral side is dark, ringed and dirty, and somewhat polished. The dorsal side is smooth and polished with a chip missing. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Wear marks on all sides suggest heavy use and it is shouldered. The stone appears to be pecked on the ventral surface; pecking increases the grinding surface for greater traction.
Length - 4.803", Width - 3.858", Height - 1.653", Weight - 1.774 lbs
|Provenance||This artifact was found within the local San Diego County region, collected 1910-1950.|
|Date||Late Prehistoric (1300-800 YA)|
|Culture||Kumeyaay / Diegueño|
|Place of Origin||San Diego County|
|Caption||Mano, volcanic : ventral view, side A (working surface).|