Yes, the card was slabbed after it was cut from a strip of cards. PSAs first slabbed card. The original holder flip is different. It must have been placed in the holder with the McNall/Gretzky flip as a hype flip.
I wonder if PSA would buy back that card (or pay the difference in value) after they now know they graded a trimmed card and assigned it an "8" grade. Surprised it didn't grade a "9".
I wish I could find my auction catalog that had the "Hall" T206 collection of cards. Holy crap, you could see PSA assigned numerical grades to obviously trimmed cards.