I knew I had these images floating around somewhere.
Four of the workout cards:
The wrapper:
Interesting how the wrapper says 140 cards but the card backs say 250 cards. The existence of the wrapper and the few miscellaneous cards that have surfaced suggests to me that the set was issued. I'd love to get a look at the wrapper in person to see if it appears to have been folded mechanically then flattened. Hopefully, some day another group will surface.