Native stone axe head, pre-Columbian (?). 391 grams, 5-1/2" long, 3" at widest point. A well-made stone axe head with one end sharpened into a (dull) blade and the other end wide and rounded, clearly well worn from use (some chipping close to blade) and with minor pitting and patination as expected, nearly identical to stone specimens found all over the Americas.
Estimate: $100-150