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- Museum number:
- 1-100981
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, and Francis A. Riddell
- Collection place:
- CA-Sta-10, Stanislaus County, California
- Collection date:
- October 1948
- Museum number:
- 1-202225
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell, James Allan Bennyhoff, and Richard Shutler Jr.
- Collection place:
- CA-Las-90 (Amedee Cave), Lassen County, California
- Collection date:
- July 1951
- Museum number:
- 1-104049
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-16, Honey Island, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-197345
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-9 (Madeline Dunes site), Madeline Plains, Lassen County
- Collection date:
- 1956
- Museum number:
- 1-106968
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 4, 1949
- Museum number:
- 1-101006
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, and Francis A. Riddell
- Collection place:
- CA-Sta-12, Stanislaus County, California
- Collection date:
- October 1943
- Museum number:
- 1-100866
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, and Francis A. Riddell
- Collection place:
- CA-SJo-1, San Joaquin County, California
- Collection date:
- October 1943
- Museum number:
- 1-197784
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-44, Lassen County, California
- Collection date:
- April 1956
- Museum number:
- 1-78637
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-104846
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- June 22, 1949
- Museum number:
- 1-79024
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-99794
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- June-July 1951
- Museum number:
- 1-78867
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-79008
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-115570
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Plu-2, Plumas County, California
- Collection date:
- August 12, 1949
- Museum number:
- 1-117456
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-290, Sonoma County, California
- Museum number:
- 1-197043
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-114933
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-45, Lassen County, California
- Museum number:
- 1-78581
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-238615
- Object class:
- Scrapers (stone tools)
- Dimensions:
- length 6.6 centimeters
- Collector:
- Francis A. Riddell, Harry Starr Riddell Jr., and Harry Starr Riddell Sr.
- Collection place:
- CA-Sac-16 (Bennet Mound), Sacramento County, California
- Collection date:
- ca. 1951
- Museum number:
- 1-196934
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-205729
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Mrs. D. Riddell
- Collection place:
- CA-Las-71, Lassen County, California
- Collection date:
- unknown
- Museum number:
- 1-102379
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, Francis A. Riddell, and William Harland Kinsey
- Collection place:
- CA-Sta-5, Stanislaus County, California
- Collection date:
- March 1949
- Museum number:
- 1-104650
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-41, Lake County, California
- Museum number:
- 1-128909
- Object class:
- Scrapers (stone tools)
- Collector:
- Adán Eduardo Treganza, Dorothy Menzel, and Francis A. Riddell
- Collection place:
- CA-Sta-5, Stanislaus County, California
- Collection date:
- May 12, 1951
- Museum number:
- 1-115389
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-68, Secret Valley, Lassen County
- Collection date:
- August 8, 1949
- Museum number:
- 1-103893
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- 1948
- Museum number:
- 1-101769
- Object class:
- Core scrapers (stone tools)
- Collector:
- Albert Mohr, Francis A. Riddell, and James Allan Bennyhoff
- Collection place:
- CA-Sta-5, Stanislaus County, California
- Collection date:
- February 1949
- Museum number:
- 2-29848
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- NV-Wa-45 (Smoke Creek Shelter), Washoe County, Nevada
- Museum number:
- 1-78716
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-103642
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-6, Honey Island, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-115402
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-69, Secret Valley, Lassen County
- Collection date:
- August 8, 1949
- Museum number:
- 1-100255
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Fre-27, Fresno County, California
- Collection date:
- Summer 1948
- Museum number:
- 1-202241
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell, James Allan Bennyhoff, and Richard Shutler Jr.
- Collection place:
- CA-Las-90 (Amedee Cave), Lassen County, California
- Collection date:
- July 1951
- Museum number:
- 1-116628
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-290, Sonoma County, California
- Museum number:
- 1-79020
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-114809
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-33, Long Valley, Lassen County
- Collection date:
- July 23, 1949
- Museum number:
- 1-115432
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- Lassen County, California
- Collection date:
- July 1949
- Museum number:
- 1-74542
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Sr.
- Collection place:
- CA-Ker-40 (Tulamniu Mound 3), Kern County, California
- Collection date:
- April 4, 1948
- Museum number:
- 1-100922
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, and Francis A. Riddell
- Collection place:
- CA-Sta-5, Stanislaus County, California
- Collection date:
- October 1943
- Museum number:
- 1-114833
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-32, Petes Valley, Lassen County
- Collection date:
- August 9, 1949
- Museum number:
- 1-103884
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- 1948
- Museum number:
- 1-196928
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-114282
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- August 5, 1949
- Museum number:
- 1-128942
- Object class:
- Scrapers (stone tools)
- Collector:
- Adán Eduardo Treganza, Dorothy Menzel, and Francis A. Riddell
- Collection place:
- CA-Sta-44 (Farmington site), Stanislaus County, California
- Collection date:
- May 12, 1951
- Museum number:
- 1-103913
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- 1948
- Museum number:
- 1-115451
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-70, Lassen County, California
- Collection date:
- August 8, 1949
- Museum number:
- 1-114338
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- August 7, 1949
- Museum number:
- 1-202039
- Object class:
- End scrapers (scraper types) and End scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-83, Lassen County, California
- Museum number:
- 1-107014
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 5, 1949
- Museum number:
- 2-29964
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- NV-Wa-46, Washoe County, Nevada
- Museum number:
- 1-104259
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-25, Secret Valley, Lassen County
- Museum number:
- 1-104185
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-22, Secret Valley, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-100033
- Object class:
- Core scrapers (stone tools)
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Fre-4, Fresno County, California
- Collection date:
- Summer 1948
- Museum number:
- 1-114681
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-17, Lassen County, California
- Museum number:
- 1-197732
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- April 1956
- Museum number:
- 1-93573
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Richard Shutler Jr.
- Collection place:
- CA-Las-80, Lassen County, California
- Museum number:
- 1-115085
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-49, Lassen County, California
- Museum number:
- 1-196404
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-101702
- Object class:
- End scrapers (scraper types) and End scrapers (stone tools)
- Collector:
- Albert Mohr, Francis A. Riddell, and James Allan Bennyhoff
- Collection place:
- CA-Sta-6, Stanislaus County, California
- Collection date:
- February 1949
- Museum number:
- 1-104390
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- Lassen County, California
- Collection date:
- 1948
- Museum number:
- 1-114659
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- July 25, 1949
- Museum number:
- 1-103899
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-15, Lassen County, California
- Collection date:
- 1948
- Museum number:
- 1-78586
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-100173
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Fre-27, Fresno County, California
- Collection date:
- Summer 1948
- Museum number:
- 1-114825
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-32, Petes Valley, Lassen County
- Collection date:
- August 9, 1949
- Museum number:
- 1-104191
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-22, Secret Valley, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-114257
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- August 5, 1949
- Museum number:
- 1-78689
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-114881
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-40, Susanville, Lassen County
- Museum number:
- 1-114667
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-17, Lassen County, California
- Museum number:
- 1-100234
- Object class:
- Core scrapers (stone tools)
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Fre-27, Fresno County, California
- Collection date:
- Summer 1948
- Museum number:
- 1-196978
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Object status:
- Deaccessioned
- Museum number:
- 1-142506
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Mrn-139, Gallinas Valley, Marin County
- Collection date:
- September 24-25,1955
- Museum number:
- 1-197590
- Object class:
- Core scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-ElD-44, El Dorado County, California
- Collection date:
- March 1956
- Museum number:
- 1-104711
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, Francis A. Riddell, and William S. Evans Jr.
- Collection place:
- CA-Lak-57, Lake County, California
- Museum number:
- 1-109512
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 21, 1949
- Museum number:
- 1-108457
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 14, 1949
- Museum number:
- 1-78946
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-104179
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-22, Secret Valley, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-93633
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Richard Shutler Jr.
- Collection place:
- CA-Las-83, Lassen County, California
- Museum number:
- 1-100899
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, and Francis A. Riddell
- Collection place:
- CA-Sta-1, Stanislaus County, California
- Collection date:
- October 1943
- Museum number:
- 1-114873
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-39 (Flint Hill), Susanville, Lassen County
- Museum number:
- 1-109650
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 23, 1949
- Museum number:
- 1-114966
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-46, Lassen County, California
- Object status:
- Deaccessioned
- Museum number:
- 1-142516
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Mrn-163, Marin County, California
- Collection date:
- September 24-25,1955
- Museum number:
- 1-103664
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-6, Honey Island, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-115307
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- CA-Las-59, Lassen County, California
- Museum number:
- 1-78785
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-101063
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, David Allen Fredrickson, and Francis A. Riddell
- Collection place:
- CA-Sta-19, Stanislaus County, California
- Collection date:
- October 1943
- Museum number:
- 1-107008
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 5, 1949
- Museum number:
- 1-103796
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-11, Petes Valley, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-100676
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Mrn-234, Marin County, California
- Collection date:
- September 1948
- Museum number:
- 1-78864
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-103799
- Object class:
- Scrapers (stone tools)
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Las-11, Petes Valley, Lassen County
- Collection date:
- 1948
- Museum number:
- 1-110093
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 31, 1949
- Museum number:
- 1-103213
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr, Arnold R. Pilling, and Francis A. Riddell
- Collection place:
- CA-SCr-1, Santa Cruz County, California
- Collection date:
- March 1949
- Museum number:
- 1-78784
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-79006
- Object class:
- Scrapers (stone tools)
- Collector:
- Albert Mohr and Francis A. Riddell
- Collection place:
- CA-Lak-30, Lake County, California
- Museum number:
- 1-114481
- Object class:
- Scrapers (stone tools)
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- August 9, 1949