Wow.
I don't know what was going on at PSA when they were grading those OJ's,,,,and the one floating around in that slab,looks like it may have done a little corner damage?
I also once thought my Ike Rockenfeld T206 was a brown back,,,but,of course,just faded black.That "brown back" looks pretty "black".Maybe it's just the scan?
Clayton
Edit to add:Just saw your post Gary-agreed.I would be pissed if I submitted that beautiful card to PSA and they sent it back floating around in their slab like that!!!