Mullet, I am with you. I looked at the "Museum" ad and I am not so sure those are not modern points either. Some of them may be the real deal, but to have that many "absolutly perfect" points....
??
As for selling on eBay... It will not surprise me if the glass ones sell. You can sell almost anything on eBay. I saw a guy sell a stick he picked up in the woods. He advertised it as a possible magical wand. He was up front about it saying he fond it under a tree on a walk. Said it didn't have any magical properties for himself, but in the right hands, it "might" have magical properties. Damned it someone didn't buy it. Think about it, I bet you could sell a bag of bunny poop. You just have to advertise it right. Something like "Secret ingrediant the Native Americans used to make pine pitch for mounting arrowheads". I bet you could get $10 bucks easy!!!!