Can you spot the error?
Brian Downing made it to the Majors in 1973 when he was 22 years old. He was used primarily as a catcher. When the Angels purchased his contract in 1978 he started out as a catcher but slowly converted to playing more in the outfield, and filling in as DH. By 1988 he was 37 and was now exclusivly used as a DH.
But when Upper Deck issued their 1991 set, they seemed to forget about that.
This is the 1991 Upper Deck card 231a Brian Downing (no position on front). See the white octagon? Inside should be a little black DH.
Like this corrected #231b Brian Downing (DH on front).
Here's the full corrected card.