Anyone with any familiarity with Sinatra, take a quick look at this link. You can't magnify the image very much, but from what I can see, this Sinatra doesn't look quite right.
http://store.therave.com/p-1153-autographed-frank-sinatra-poster-24...
Honestly, I'm quite surprised that the Rave would even be selling this, since they usually stick to performers who've signed a poster or canvas before/after the show.