@Bugyotsuji
Thank you for the reply. The hard part is just not knowing, but I also understand it's hard to know with absolute certainty. I hope to continue to learn how to better tell and this may just be one of the learning fees as you stated.
@Matsunoki
Thank you for the reply. I do know that this was a small amount of his collection. I bought 3 different ones out of roughly 20. Some of the others were rope cutters, similar ones to the 3 and 4th shown, and others were more basic arrow shapes. All in various conditions from fairly rough/rusted to immaculately polished. I am assuming they were put up and stored as is since it took a little time to find them.
Also, thank you for the information on the ones on ebay from India. I was aware of those. I was told by another collector once to always look at the area were the tang meets the arrowhead itself. That is one area that is usually poorly replicated, but I don't know how well that holds true. Truthfully, I also hope you are wrong as well but it's not looking too likely. Thanks again for the information and help.