Looks like a typical printing mixup of fronts and backs. Very common for many products. Not any more valuable than either of the cards the sides are from. Except to collectors who gobble up these things. This one makes a great team card for Steelers team collectors.
I collect: Baseball, Football, Hockey, Mostly Vintage pre1980, My Homie teams - Washington/Baltimore Teams Senators (Twins, Rangers), Expos/Nationals, Redskins, Capitals, Bullets/Wizards - HOFers - Non-sport (mostly TV shows and movies).
My Trade List is very much a work in progress
CaptKirk42s Trading Card Blog Curly W Cards Strive For '65 YouTube klandersen42
