I recently purchased a first edition book titled "Wait Till Next Year," co-written by Carl Rowan and Jackie Robinson. The inside page is signed by Jackie Robinson, and the following page is signed by Rowan. I was hoping the Jackie Robinson experts out there could help me out. I paid $500 for the book, which I know was risky because I really don't know if the signature is good. I took a shot. What do you guys think? Thanks!