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- Museum number:
- 1-196140
- Object class:
- Perforators
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-145802
- Object class:
- Perforators
- Collector:
- Albert B. Elsasser, E. Contreras, and James Allan Bennyhoff
- Collection place:
- CA-Nap-89, Berryessa Valley, Napa County
- Collection date:
- November 1956
- Museum number:
- 1-196141
- Object class:
- Perforators
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-145338
- Object class:
- Perforators
- Collector:
- Francis A. Riddell and James Francis Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- November 26-28, 1954
- Museum number:
- 1-196161
- Object class:
- Perforators
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-101726
- Object class:
- Perforators
- Collector:
- Albert Mohr, Francis A. Riddell, and James Allan Bennyhoff
- Collection place:
- CA-Sta-6, Stanislaus County, California
- Collection date:
- February 1949
- Museum number:
- 1-101419
- Object class:
- Perforators
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Las-1, Lassen County, California
- Collection date:
- February 1949
- Museum number:
- 1-196158
- Object class:
- Perforators
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-196150
- Object class:
- Perforators
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-145392
- Object class:
- Perforators
- Collector:
- Francis A. Riddell and James Francis Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- November 26-28, 1954