A few weeks ago, we were at the local flea market, and picked up a few books, and one of them was Fahrenheit 451, by Ray Bradbury. I'd been meaning to read this for some time now. So I open the book, and lo and behold there was Ray Bradbury's signature on the inside cover! A google search turned up numerous signatures by him, and damned if they weren't a match. I did notice that the book looked like it hadn't been read at all, despite being a bit old. We are guessing that someone didn't realize what they had, and just sold it to the flea market.
I still want to read it, but I almost feel like I should get another copy!
If it's a 1st edition, I wouldn't crack the spine other than to inspect the condition of the pages (and look for long forgotten bookmarks).