Black and white negative. Bear Valley Site #271, Marin County. Concentrations of mortar fragments. 1941. 2 1/4 x 2 1/4 inches. 15-12816. Collector: R.K. Beardsley.
Verbatim coll. place:
Bear Valley Site #271, Marin County
Collector:
Richard K. Beardsley
Collection date:
1941
Object type:
documentation
Object class:
Black-and-white negatives and Mortars (grinding tools)