I completely overlooked this earlier, but there is some sort of stamping on it. Best picture I could get of it:
http://i.imgur.com/TXeuJ8x.jpg
Ive just linked the highest res of it, so you can have the best look possible. The stamp does look pretty close to this:
http://keymancollectibles.com/balls/images/wpe13.jpg.
There is a mark under the "Jul" that looks like a bat/ground caused scuff.