[Pickles]

A colleague was offered this ball, as is, not certified, for $1000, or $1500 with a PSA cert (card shop assumes risk)
I am only comfortable with Dimaggio, Ford, and somewhat comfortable, not there with Mantle, as those are the ones I know
Others are beyond my knowledge base
Sig I recognize (can not vouch for authenticity
Aaron
Greenberg
Ted Williams
JDMaggio
Mickey M
Mize
Kaline
Ferrell
Snyder
Rose
Gates Brown
Whitey Ford
Gehringer
Kell
Spahn
Yaz
Spahn


S I have 3 questions:
1- Thoughts on auto (real or not) for all
2- Any ideas on the signatures above Rose and 2 above Ferrell? I suspect the original collector was a Detroit Tigers fan (Gates Brown sig among HOFers) so that may be a starting point. Truly have no other clues
3- If this goes to PSA an say, all but 1,2,3 autos are genuine. Will the ball get a cert with disclaimer (liike the clubhouse) or will it get rejected? Card shop guy says if any sig is not real, ball will not get COA, hence the $500/$150 gamble he is taking..
Thanks in advance
B