It just missed the printing of the gold foil on the front. So it's actually not an error or a misprint. It just missed a step before getting into the public. I can't say that it's rare, but it's also not common. It might fetch an extra dollar or two from collectors of NYY or Mariano. Otherwise, it's nothing real special in the eyes of most collectors. Still cool to see though.
NO PWE's EVER!!! PLZ PM me 1st before sending any offer. ONLY selling cards as of March 2024. No trades or purchases right now.
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Largest total PC card collections by Team, then Athlete (as of 3/22/24):
STL Cardinals (MLB) - 8810; Carolina Panthers - 2888; GB Packers - 1790+ cards
Mark Martin (NASCAR) - 2038 cards; Jimmie Johnson (NASCAR) - 1875 cards; Jeff Gordon (NASCAR) - 1594; Ricky Rudd (NASCAR) - 839; Ozzie Smith (MLB) - 707