1. Adze Bookmark Museum number: 1-238179 Object class: Adzes Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Sac-56 (Mosher site), Sacramento County, California Collection date: 1951
2. Arrow shaft straightener Bookmark Museum number: 1-196799 Object class: Arrow straighteners and Manos (food mills) Collector: Francis A. Riddell Collection place: CA-Las-7, Karlo area, Lassen County Collection date: 1955
3. Axe Bookmark Museum number: 2-40715 Object class: Axes (stone tools) Collector: Francis A. Riddell Collection place: Midwestern United States
4. Axe Bookmark Museum number: 1-239568 Object class: Axes (stone tools) Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: Modoc County, California
5. Axe head Bookmark Museum number: 2-40720 Object class: Axes (stone tools) Collector: Francis A. Riddell Collection place: Muncy, Lycoming County, Pennsylvania
6. Axe head Bookmark Museum number: 2-40719 Object class: Axes (stone tools) Collector: Francis A. Riddell Collection place: Muncy, Lycoming County, Pennsylvania
7. Baked clay Bookmark Museum number: 1-238178 Object class: Baked clay and baked clay objects (object genre) and Charmstones Collector: Francis A. Riddell, Harry Starr Riddell Jr., and Robert Kersh Collection place: CA-Sac-56 (Mosher site), Sacramento County, California Collection date: 1939
8. Basalt Bookmark Museum number: 1-69154 Object class: Worked stone Collector: Francis A. Riddell Collection place: CA-Lak-36 (Borax Lake site), Lake County, California
9. Basalt Bookmark Museum number: 1-69155 Object class: Worked stone Collector: Francis A. Riddell Collection place: CA-Lak-36 (Borax Lake site), Lake County, California
10. Basalt Bookmark Museum number: 1-148598 Object class: Cores (lithics) Collector: Francis A. Riddell Collection place: CA-Las-7, Karlo area, Lassen County Collection date: 1955