Lynn, I think it's real, but I don't think you should buy it unless it's priced low, if that's why you're asking. The loop of the P looks like it had a head-on collision with a Mack truck.
It turns out there are a lot of other pieces offered for sale with it that are clearly not real. You can judge an autograph by the company it keeps. If it's being sold by someone selling lots of likely forgeries then the odds it's real are nil.