Koufax ball - Help Appreciated!

[mattjc1983]

Hi all, would appreciate opinions on a Steiner Koufax ball I recently picked up on eBay. It's a Coleman NL ball, picked it up a discount because the signature is light.

I am not a Koufax expert but am fairly confident in the signature as I've been shopping Koufax for a while (though opinions are welcome). However, a couple concerns:

1) The Steiner hologram (picture #2) does not match the other Steiner holograms I have. Unlike the holograms that say Steiner Sports Memorabilia in the center (see sample Selig ball in picture #3) this hologram just says Steiner in the same size font over and over. Looking on eBay, it looks like maybe this is an older-style hologram?

Which would make sense since the Steiner cert is an older paper style.

2) There is unusual wear just above the hologram, on the Rawlings logo. It almost looks like there was another rounded sticker/hologram there at one point, which is always a bit of a red flag.

Maybe I'm just paranoid on this one: opinions appreciated!