That should get some responses. Also, there is an autograph section of the forum. You should get responses here as well but you may want to post this in the autograph section just to make sure. I posted the link to the section below.
One more thing. If you could post the stamping on the ball, that might be helpful in terms of dating it as well.
http://www.net54baseball.com/forumdisplay.php?f=31
Best of luck!