For sale is this pretty knife that is made of Florence chert and was found in the Kansas River in Wyandotte County, Kansas This artifact is 2 9/16" long.. It comes with 2 COA's, 1 from Dwain Rogers where he calls it a Scottsbluff and a COA by Gregory Perino where he calls it a Duncan. Which ever it is, it has a great river polish on it. This artifact comes with a 30 day no questions asked return as long as it is returned in as shipped condition. Buyer pays return shipping. Payment by Paypal and shipping is FREE to anywhere in the US. NO sales outside the US.