4 7/8" Angostura / Agate Basin, Cole Co. Missouri. Heavily ground basal edges . Nice long exampleHeartland Artifact Auctions4.7(879)$46(3 bids)1 day Left
3 7/8" Agate Basin Found in Logan Co. Illinois w/ Keele & Tom Davis COA's Ex: Dean Downing, BrianNorth American Artifact Auctions4.7(240)$110(3 bids)Apr 25, 2026
2 1/8" Tri-Color Horse Creek Chert Greenbriar, Hardin Co. Tennessee. Beautiful piece of wellHeartland Artifact Auctions4.7(879)$32(3 bids)1 day Left
3 5/8" Agate Basin found in Lincoln Co., Missouri - Koelhler Family CollectionNorth American Artifact Auctions4.7(240)$30(4 bids)Apr 25, 2026
