I found this one interesting. Up for auction is a very nice, authentic Ted Williams signed baseball, with .406 inscription added. Upper Deck Certified.

Accompanying it is a non-certified Joe D signed ball, that the seller claims was obtained by them in person in 1988.  I think the autograph is suspicious at best.  Any thoughts on this?

http://www.ebay.com/itm/BOTH-JOE-DiMAGGIO-and-TED-WILLIAMS-406-AUTO...