|'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 and shouldered from heavy use. It is square in shape. The stone material is granitic with muscovite mica. It is medium grained.
This grinding or milling stone ventral side is shows heavy use with shouldering and some pecking; pecking increases the grinding surface for greater traction. The dorsal side shows polish. 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 show wear on one end and shouldering on all sides, squaring the stone, especially on the ventral side.
Length - 4.251", Width - 3.976 ", Height - 1.811", Weight - 1.793 lbs
|Provenance||This artifact was found within the local San Diego County region, collected 1910-1950.|
|Date||Late Prehistoric (1300-800 YA)LP|
|Culture||Kumeyaay / Diegueño|
|Place of Origin||San Diego County|
|Caption||Mano, granitic: dorsal view, side A (polish and some shouldering).|