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Current results range from 1940 to 1940

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1. Hammerstone

Museum number:
1-62034
Object class:
Hammerstones
Dimensions:
length 128 millimeters
Collector:
Ernest N. Johnson
Collection place:
CA-CCo-250, Concord, Contra Costa County
Collection date:
1936-1937

2. Hammerstone

Museum number:
1-62036
Object class:
Hammerstones
Dimensions:
length 64 millimeters
Collector:
Ernest N. Johnson
Collection place:
CA-CCo-250, Concord, Contra Costa County
Collection date:
1936-1937

3. Hammerstone

Museum number:
1-62035
Object class:
Hammerstones
Dimensions:
diameter 85 millimeters
Collector:
Ernest N. Johnson
Collection place:
CA-CCo-250, Concord, Contra Costa County
Collection date:
1936-1937