Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1352
Object Name Mano
Description A fragmented 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. This stone is fire affected. The stone material is diorite with feldspar and hornblende. It is medium-grained.

This grinding or milling stone's ventral side is smooth and flat. Its dorsal side has a large loss on the right front side and a shallow loss on the left back. There is a dark staining on both surfaces. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Construction of the stone created a smooth/ textured surface on the ventral and dorsal sides.

Length - 3.779", Width - 2.677", Height/Thickness - 1.377", Weight - .972 lbs.
Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date LP
Material Diorite
Culture Kumeyaay / DiegueƱo
Place of Origin CA
Caption Dorsal view