It's an amazing coin. Hope I can find one or buy one!
I bought a morgan dollar that came from a reputable dealer (6500 positives) turned out to be fake. We got it taken care of.
Anyways, we're all friends around here and we look out for each other. I would weigh it and measure it immediately
Weak mint marks coin are one sign of counterfeit.
"In fact, PCGS once received a complete set of fakes in a custom holder, quite an achievement by an unwitting collector! "
http://www.ebay.com/gds/Fake-Indian-Head-Quarter-Eagles-/10000000011884130/g.html