Conical Cog Stone, unknown date
Milling Stone Horizon peoples; Southern California
Stone; 3 1…

Cogged Stone

ClassificationsOrganic Materials-stones-worked

Made AtCalifornia, United States, North America

MediumStone

Dimensions3 1/2 x 4 3/4 x 1 3/4 in. (8.9 x 12.1 x 4.4 cm)

Credit LineGift of the James Irvine Foundation

Object number11677

DescriptionUse unknown. Associated with 11640 to 11697. 11 cogs. Badly damaged and repaired. Conical. Edge convex. Faces nearly flat. Cogs formed by rounded grooves, .5" deep and approx. .375" wide. Ridges rounded; approx .5" wide. Traces of asphalt in two place on larger face may be from attempt at patching. Sketch on card. Diameters (base) 3.625"; (top) 2.75".

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