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Start Over You searched for: Object class Specimens and samples Remove constraint Object class: Specimens and samples Collection place San Francisco, San Francisco County, California Remove constraint Collection place: San Francisco, San Francisco County, California

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11. Asphalt conglomerate

12. Asphalt conglomerates

13. Asphalt fragment

14. Asphalt fragment

15. Asphalt fragment

16. Asphalt fragment

17. Asphalt fragment

18. Bark fragments

19. Basket fragments and soil sample

20. Bone fragment