Sight down the blade edges, the pressure chipping is about as fine as you get in Early Archaic workmanship--parallel flaked, the flakes stair-step up the sides. The flint is either Indiana Holland Chalcedony or a 'cousin' to Holland that is found in Hancock County, Kentucky--the knife itself from a collection gathered in the area where both flints occur--their distribution areas, Spencer-Perry County, Indiana, and Hancock--Daviess Counties, Kentucky. Length is 4&5/8" by 1&7/16", yet fairly thin at 3/8" max thickness. An interesting feature is that the edges of the tip, the top 1" show super-strong edge grinding--no damage to the area, but a secondary use besides work as a cutting blade. Wish I could offer a good theory as to what the purpose of the work polish was, but something was being scraped--so frequently that the edges were worn smooth. It looks like the tip was fashioned into a burin, but that's use-worn away. Long used, strongly patinated, the knife is lifetime guaranteed authentic. List price covers the shipping cost. I welcome checks or M.O.s, but PLEASE note I do not use paypal--Roy a.