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- Museum number:
- 1-99812
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-29, Honey Lake Valley, Lassen County
- Museum number:
- 1-99816
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-29, Honey Lake Valley, Lassen County
- Museum number:
- 1-99832
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-54, Lassen County, California
- Museum number:
- 1-99815
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-29, Honey Lake Valley, Lassen County
- Museum number:
- 1-99875
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-98, Lassen County, California
- Collection date:
- June-July 1951
- Museum number:
- 1-99821
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-29, Honey Lake Valley, Lassen County
- Museum number:
- 1-99789
- Object class:
- Choppers (prehistoric cutting tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- June-July 1951
- Museum number:
- 1-99791
- Object class:
- Choppers (prehistoric cutting tools) and Hammerstones
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- June-July 1951
- Museum number:
- 1-99793
- Object class:
- Choppers (prehistoric cutting tools) and Hammerstones
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- June-July 1951
- Museum number:
- 1-99830
- Object class:
- Drills (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-29, Honey Lake Valley, Lassen County