Jose was a popular player in 1988 - we did multple sets of him. It has been almost 30 years since then, so I don't remember from just a written description. The only baseball cards not issued in set form were the 1989 and 1990 minor league "wax" issues. So the card you describe was actually issued in an 11-card set. If my memory doesn't fail me completely here, I think we did a yellow set along with the 2 variants of green sets. On a side note, we also made a set where we completely meesed up and the name was "Jose Conseco". I have seen a couple of those sets in the hobby (not put there by me). As far as I knew, we didn't have an official release for them. Not sure how any of those got out of the warehouse, but I left in 1993. Sounds like a lot of old stock found its way into the hobby within about 5 years of me leaving there.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).