1987 Hygrade All-Time Greats Baseball Forum

Does anybody know which cards were issued as part of the original 50 card set?  I found a grouping of exactly 50 cards in my collection - I think I received it as a gift from someone.  I've read some references that originally Hygrade issued a 50 card version of this set and then followed up with the rest.  If you go on eBay, you will see numerous 50 card sets for sale.  I suspect those are the original 50 card sets which were released as a set.  I'm trying to determine if the 50 I had in a group reflect that original 50 card set.