1. Acorn anvil Museum number: 1-119501 Object class: Acorn anvils Collector: Arnold R. Pilling and Franklin Fenenga Collection place: CA-SLO-56, San Luis Obispo County, California Collection date: October 1, 1949
2. Acorn anvil Museum number: 1-119502 Object class: Acorn anvils Collector: Arnold R. Pilling and Franklin Fenenga Collection place: CA-SLO-56, San Luis Obispo County, California Collection date: October 1, 1949
3. Acorn anvil Museum number: 1-117961 Object class: Acorn anvils Collector: Arnold R. Pilling and Franklin Fenenga Collection place: CA-CCo-153, Orinda, Contra Costa County Collection date: October 1949
4. Anvil Museum number: 1-108238 Object class: Acorn anvils Collector: Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga Collection place: CA-Son-299, Bodega Harbor, Sonoma County Collection date: July 12, 1949
5. Anvil Museum number: 1-109689 Object class: Acorn anvils Collector: Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga Collection place: CA-Son-299, Bodega Harbor, Sonoma County Collection date: July 23, 1949
6. Anvil Museum number: 1-74240 Object class: Acorn anvils Collector: Arnold R. Pilling, Clarence E. Smith, Franklin Fenenga, and Wilhelm G. Solheim II Collection place: CA-Ala-329 (Ryan Mound), Coyote Hills, Fremont Collection date: February 1948
7. Anvil Museum number: 1-121968 Object class: Acorn anvils Collector: Arnold R. Pilling Collection place: CA-Ala-307, Berkeley, Alameda County Collection date: April 1950
8. Anvil Museum number: 1-114226 Object class: Acorn anvils Collector: Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga Collection place: CA-Son-299, Bodega Harbor, Sonoma County Collection date: August 4, 1949
9. Anvil Museum number: 1-109388 Object class: Acorn anvils Collector: Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga Collection place: CA-Son-299, Bodega Harbor, Sonoma County Collection date: July 19, 1949
10. Pitted cobble Museum number: 1-74480 Object class: Pitted stones Collector: Arnold R. Pilling Collection place: CA-SLO-5, San Luis Obispo County, California Collection date: September 1947