I'm trying to figure out what set this is and get some more info on it. I have a partial set of these "Mini-posters" with some doubles. I'm hoping to trade / sell these either here or on eBay, but I'd like to know a little more about them before I get into the whole process. Can anyone give me help?

I know the set is from the late 1970's or early 1980's. There are 50 cards in the set. Any help would be appreciated.

Dave

https://www.sportscardforum.com/album.php?albumid=189