I don't know if it's a Grahm Cave, it could be. I have a smaller one in a frame that definitely is. They used to plow every year at least once. You could go back everytime & find points. Most bigger ones like the AB were broken.
I’ve always been a little jealous of the heavy saturation of the full range of cultural stone age period types that come out of Ohio.
That Agate Basin has some stunning workmanship on it, from what I can make out. If it’s too much to ask, that’s ok, but a clear pic of both sides would be much appreciated.