[swarmee]

I thought I would be able to give you the reason, but my initial thought was wrong. Interestingly enough, there is a 3rd variation to this card.

I found one variation on COMC and bought it and recommended they add the variation to their database.

The 3rd variation is found in the 1988 Donruss New York Mets Team Collection books, as it states "1988 Leaf" under Serra, CA instead of "1987 Leaf" like both the ones you've shown. Those will all be hand cut, though, coming out of a book.