thanks twitch I'm on the tn ky line in Tennessee right on the Tennessee riverI'm guessing you're in central KY'ish. They are large square based knives in the area. A little further east it could be Wadlow related but I think you have a KY variety of square stemmed knife. I've found a couple broken ones similar to what you have but I've never seen them typed. Tennessee River Knife is as close as I've seen in a book. Very cool either way.
thanks twitch I'm on the tn ky line in Tennessee right on the Tennessee river