2 1/16" Besant Knife River Chert Arrowhead Found in South Dakota Ex: Dan Maas Collection.North American Artifact Auctions4.7(236)$12(2 bids)Feb 28, 2026
3 1/8" Hanna Northern Knife River Chert Arrowhead Found in South Dakota Ex: Dan Maas Collection.North American Artifact Auctions4.7(236)$10Feb 28, 2026
1 7/16" Lookingbill Knife River Chert Arrowhead Found in South Dakota Ex: Dan Maas Collection.North American Artifact Auctions4.7(236)$10(1 bid)Feb 28, 2026
