I bought this piece that was suppose to have been found here in Greene County. It's really nice, but I just hope it is legitamite, not modern made. How can I tell for sure. It does have some dirt/sand in some of the crevices as seen best in the pic showing the bottom of the bird. I guess a clever counterfieter would think to do that too. It's just over 6" from tip to tip. I've got no real reason to think it's a fake other than the fact that I didn't have to pay too much for it. Does it look authentic to y'all?