2007 P John Adams Dollar Obverse Missing Clad

Hello! I'm new here and I've just recently started collecting. I mainly just keep anything old/weird I come across.

I often pick up rolls of dollar coins from the bank to use at work (of course I check all of them before using them) and I stumbled across this one here. It appears the clad layer on the obverse is missing. I've searched for DAYS on the internet for information on this and the only thing I could find was the article on coins.about.com about Mary C.

I took it to a local coin shop and the guy looked at if for a second (literally) and said somebody did that to the coin. I didn't believe him so I emailed the NGC dealer closest to me but I haven't received a response. So now I'm here!

My camera is of low quality so the only picture worth showing is below, but I can tell you the coin is significantly thinner than the "regular" coin. I don't have a scale but since it is thinner I'm going to assume it weighs less.

From what I've read, the strike should be weaker but everything looks normal to me.

Also, what I couldn't show is the edge lettering is a little off. The top of the "2007 P" is nearly cut off by the edge of the coin.

My questions are:

1) Is it possible this is a fake?

2) Is there anything else I should be looking for in order to authenticate it?

3) Since it appears to be very rare, how do I get anybody to take me seriously and get this authenticated?

Thanks in advance!