All the Mantles are garbage!
Absolute Crap! There are several sellers who use these Joe DiMaggio Estate carts to try and legitimize their items. They lead people to believe that they are from the real Joe DiMaggio, when in fact they are from a regular guy whose name happens to be Joe DiMaggio.
The "signed" artifacts in the links I posted are actually from the Memorabilia Center with some featuring "Included is a Letter of Authenticity from Joe DiMaggio Estate" from the Perullo family (or familia if you prefer). I hope they're more legit than the sellers you've referenced.
Except these are not from the estate of the Baseball Player.
The Walt Disney is terrible!