1953 Phil.A,s ball;how rare to find [coach] Chief Bender
 

I have been looking to purchase a 1953 Phill. A,s ball with a autograph of Chief Bender on it. i have seen just a few over the years and am interested in finding one for myself.How much would one be valued at in reasonably good condition.Anyone have any examples that they may show and may have an interest in parting with? Thanks, Cookie