2 11/16" Great Basin Cody - Windust Knife, Obsidian, Rogers and Stermer COA

Description

3338-2021)
Great Basin Windust / Cody Complex Transitional Knife made of black to dark gray tinted obsidian with trace flow banding. This fine specimen measures approx. 2 11/16” x 1 5/16” x 5/16” and has superb bifacial collateral pressure flaking resulting in a thin lenticular cross section. The edge work is even and the stem has longitudinal thinning plus moderate edge grinding. Overall has wonderful patinated onion skin patina with alkali mineral deposits. Condition is excellent with typical ancient use wear while quality is G8-9. Was reportedly found on private property and comes with a Dwain Rogers and Ben Stermer COA, x George Vanworren Collection.
Will ship via US Priority Mail box with delivery confirmation and include a statement of provenance. All artifacts are guaranteed to be ancient authentic with a conditional 30-day return policy with extra time allowed if buyer is sending this item to be evaluated at the buyer's expense for a COA by a competent authenticator like Dwain Rogers, Tom Davis, Roy Motley, Ben Stermer, or Jackson Galleries.