SGC shipment arrived today, and the cards are "re-backed". I guess this means the card fronts are real, "skinned" off original 1949 Bowmans, and then glued onto some plain cardboard. Maybe the backs were damaged and the previous owner wanted to improve how they looked. Maybe the previous owner wanted to try to pass them off as "blank-backed" cards. Oh well it was a learning experience and I am out $14 grading fees after I get my refund.
Larry