these were originally given out to Team owners and employees to show what errors and variations occurred in the 1989 Pro Set, also includes the 1988 Test set, most cards are multiples as they included one to showcase the front and another to show the back.
https://opa.cig2.usa.canon.com/s/u/album/CfWWFfTXeQL
https://opa.cig2.usa.canon.com/s/u/album/CfWWFfTXeQL
