I think the Williams is a forgery. The Koufax looks very strange but I have seen some recent examples that have been authenticated that are worse than this. I think it is also a forgery but not certain
The Williams seemed to start out ok but I dont like the way it ends (the AMS) esp. The Koufax looks off, esp the end of the sig thanks to the beautiful close up. I wish they were all like that.
Thanks for the responses. You have confirmed my suspicions although they are a little better forgeries than I normally see.
These came in a 50 ball collection mostly with original show tickets but these two had no tickets. The owner claimed to have gotten them in person but couldn't find the tickets. The other balls were dead on including a beautiful Mantle that also had no ticket so I just wanted some confirmation of my opinion that they were not authentic.
PSA/DNA "Quick Opinion" also rejected both autographs.
As usual, this forum is on target on these forgeries.