4 7/16” x 1 7/16” Hardin, Burlington Chert, Boone Co., Missouri, Motley & Leithoff COA, Heartland Artifact Auctions4.7(897)$19(2 bids)Jun 21, 2026
4 1/8” x 1 3/4” Hardin, Burlington Chert, Greene Co., Illinois, Motley COAHeartland Artifact Auctions4.7(897)$10(1 bid)Jun 21, 2026
