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- Museum number:
- 1-53843
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 9 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 15, 1939
- Museum number:
- 1-39592.2
- Object class:
- Ground stone and Mortars (grinding tools)
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-53853
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 5.5 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 19, 1939
- Museum number:
- 1-39588
- Object class:
- Ground stone and Mortars (grinding tools)
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-53841
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 9.5 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 15, 1939
- Museum number:
- 1-39416
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 22 millimeters
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- October 1937
- Museum number:
- 1-39608
- Object class:
- Ground stone and Mortars (grinding tools)
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-39606
- Object class:
- Ground stone and Mortars (grinding tools)
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-39601
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- diameter 15 inches
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-39605
- Object class:
- Ground stone and Mortars (grinding tools)
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938