Josh, I went to the site you listed Signed, sealed.
I found three Beatles autograph of Paul M. The three are very different in my eyes. All the "P" look like "R". I have seen many of his examples and it seems he signs his last name in full. The guitar is at $9,500. I am no expert but all I see all Red Flags, thanks, Jay
here is my e-mail firstname.lastname@example.org