I need some advise and or help with Sandy Koufax autograph

[almostdone]

I usually don't post here too much but I do read most threads and have learned much from the expertise here.

I learned some great tips on Ted Williams that gave me the confidence to purchase a ball signed by him.

I'm getting better on Mantle as well although I'm not looking for him... Yet.

The reason for this thread is to ask for some identifying clues in looking at a Koufax signature. Anything in particular to look for?

Any help would be appreciated.

Thanks,
Drew