I mentioned in another thread that a lot of cards get copyright dates a year before their actual release, especially in the case of baseball, as the companies are making the cards once the WS ends and releasing them in January (remember back in the day, some were out as early as December!).
What you have is definitely some sort of uncut variety of the 1987 trivia/fact cards. This could be one of those "ebay uncut proofs" - in other words, a back-doored item. Unless there is some major prevalence of the existence of these 4-in-1s, don't expect Admin to allow them to be added here. (I have several of these types of items.)
-- 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).