Error - Gary Sheffield 1989 Upper Deck Rookie w/ Double Print Back, Kent HrBek Front - Rare Misprint

This is a 1989 Upper Deck Gary Sheffield rookie card with a very unusual error.  It has a double printed back with a Gary Sheffield and Kent HrBek back so everything is scrambled.   It has a Kent HrBek front.  The card has light wear and is off center, but is in approximately Excellent overall condition.  This is a rare error Sheffield rookie card.  Source PropertyRoom.com's trusted merchant, Sports Collectibles, presents this online auction for the above  Error - Gary Sheffield 1989 Upper Deck Rookie w/ Double Print Back, Kent HrBek Front.