1. Abalone Bookmark Museum number: 1-49650 Culture or time period: Phase 1, Late Horizon: Danville facies Object class: Shell samples Dimensions: width 25 millimeters and length 34 millimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 14, 1938
2. Abalone object Bookmark Museum number: 1-49634 Culture or time period: Phase 1, Late Horizon: Danville facies Object class: Worked shell Dimensions: length 35 millimeters and width 26 millimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 10, 1938
3. Abalone object Bookmark Museum number: 1-49770 Culture or time period: Phase 1, Late Horizon: Danville facies Object class: Worked shell Dimensions: length 74 millimeters and width 20 millimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 16, 1938
4. Abalone object Bookmark Museum number: 1-49491 Culture or time period: Phase 1, Late Horizon: Hotchkiss facies (1100–1300 AD) Object class: Worked shell Dimensions: diameter 27 millimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 8, 1938
5. Bead Bookmark Museum number: 1-224318 Culture or time period: Phase 1, Late Horizon: Hotchkiss facies (1100–1300 AD) Object class: Beads (pierced objects) Dimensions: length 1.4 centimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: Spring 1966 Taxon: Olivella
6. Beads Bookmark Museum number: 1-49779 Culture or time period: Phase 1, Late Horizon: Bayshore facies (1100–1300 AD) and Phase 1, Late Horizon: Hotchkiss facies (1100–1300 AD) Object class: Beads (pierced objects) Dimensions: length 20 inches Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 16, 1938
7. Beads Bookmark Museum number: 1-49618 Culture or time period: Phase 1, Late Horizon: Bayshore facies (1100–1300 AD) Object class: Beads (pierced objects) Dimensions: diameter 3 millimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 8, 1938
8. Beads Bookmark Museum number: 1-49880 Culture or time period: Phase 1, Late Horizon: Danville facies Object class: Beads (pierced objects) Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 5, 1938
9. Beads Bookmark Museum number: 1-224492 Culture or time period: Phase 1 (transitional): General facies Object class: Beads (pierced objects) Dimensions: weight 35.56 grams Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: Spring 1966 Taxon: Olivella
10. Beads Bookmark Museum number: 1-49637 Culture or time period: Late Horizon: Danville facies and Phase 1, Late Horizon: Hotchkiss facies (1100–1300 AD) Object class: Beads (pierced objects) Dimensions: diameter 5 millimeters and diameter 4 millimeters Collector: Robert Fleming Heizer Collection place: CA-CCo-138, Oakley, Contra Costa County Collection date: June 10, 1938