I know of one ball signed by the entire 1919 Sox team.
It's dated October 9,1919, the final day of the 1919
World Series. The ball was auctioned in 2000. See link:
http://www.legendaryauctions.com/Lot...ventoryid=1233
I have the Mastro catalog with photos of the ball, but my
computer isn't working. Perhaps someone on the forum can
post a scan of the ball.
ErikV