Knobbed Lunate Bannerstone??

[justsomerandom]

Hi there. This was something that was passed down from my grandfather, to my father, to me. From what I can gather, it is a knobbed lunate bannerstone, found somewhere in ohio. I'm just trying to get an understanding of what I have here. Any help is greatly appreciated...

 

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[ToddsPoint]

Nice one! And quite valuable. Your title says it. Knobbed lunate.