Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1343
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 rectanguloid in shape. The stone material is a sandstone (sedimentary) with muscovite mica and areas of pinkish weathering. It is medium grained.

This grinding or milling stone ventral side is smooth and rough as well as rounded. Its dorsal side is smooth and rounded. 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. Construction of the stone created a textured surface on the perimeter sides. The stone appears to be heavily pecked on all but the dorsal surface; pecking increases the grinding surface for greater traction.

Dimensions:
Length - 3.70", Width - 2.952", Height - 1.614", Weight - 1.089 lbs.

Provenance This artifact was found within the local San Diego County region, 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Sandstone
Culture Kumeyaay / DiegueƱo
Place of Origin San Diego County
Caption Mano, sandstone: ventral view, side A (polished and rough working surface).