First, immediately below are links to threads on GFA.

http://live.autographmagazine.com/forum/topics/ebay-mantle-dimaggio...

http://live.autographmagazine.com/forum/topics/roger-maris-forgerie...

http://live.autographmagazine.com/forum/topics/joe-dimaggio-forgeri...

https://live.autographmagazine.com/profiles/blogs/guaranteed-forens...

https://live.autographmagazine.com/profiles/blogs/guaranteed-forens...

Look at this crap listed by Ebay seller Thurmond.

Forged Mickey Mantle/Ted Williams baseball.

The worthless COA is from Stephen Rocchi and Guaranteed Forensic Authenticators (GFA).

Look at this garbage.  Laughable.

https://www.ebay.com/itm/Mickey-Mantle-and-Ted-Williams-Signed-Base...