Mantle clubhouse
 

Hello,
Is there any good way to check real mantle autographs vs clubhouse on team signed baseballs.

The Spence/Mitnick Team Ball Autograph book that came out last year devotes a considerable amount of time on this topic (with numerous photographic examples)....They more or less say, any Yankee team ball after 1954 with Mantle, most likely is clubhouse....

Interesting Case Study........

mantle ball
 

Mantle ball