Is same autograph on one item devalued?

Answer 1

Autographed Item Autographed ItemHaving two signatures of the same player on a team signed Baseball does happen every now and then. As a number of balls are passed around for a team to sign a player might accidentally sign twice. It doesn't add value but might sell at a little more if it is a star player and buyers are interested. A Signed baseball of one ball player signing twice might also sell at a little more because of the novelty, but most likely not double in value.