Large Hornstone Cache Blade Arrowhead Adams Co Ohio

Up for auction is this awesome 4 7/8 hornstone knife form. A man named clifton driskol found this relic on the hill top located along the confluence of brush creek and hte ohio river in adams county in the early 1940's. I bought this item from the man as well as many other artifacts he had collected. He told me there were many many of this style relic littered all over the ground, btu he was looking for the notched ones and only picked up one. Can you believe it!