Thanks for everyone's help. I felt as good about a Babe Ruth autographed ball as one can feel, but this was my first 'big' signed vintage ball purchase and I have a feeling I will be picking up more of them. That being the case, I need to get edumacated. Brandon said the ball is good. I'll be buying his set of two books to learn more:
http://www.historyofthebaseball.com