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					Originally Posted by Mr. Zipper  I'm not a Koufax expert, but you can clearly see this signature is slowly drawn. Look at the loop of the S, and the right side of the K to see the slowness. Based on that alone I'd say it's almost certainly bad. Sorry.
 How did you obtain the Larsen? Perhaps it was signed a long time ago, but it seems much smaller and tighter than he has signed in quite some time.
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 Steve (Zip),
This was my initial impression on the Koufax as well.  I also want to note that I didn't realize at the time that I could blow up the size of the signature on the image.  Once I read your comment, I looked at it again. When blown up it becomes pretty obvious, FWIW.