It's a typical B&J Collectibles.
B&J definitely had some authentic DiMaggio sigs, but that's not one of them.
If someone from here wins it and submits it to PSA or JSA, I guarantee they will not authenticate it.
It's slowly penned, the baseline is way off, etc.
It's the same forgery sold by the Bergen County Prosecutor.
http://live.autographmagazine.com/pr...seball-auction
BergenDiMaggio-100.jpg