From the Dollar Box - Unknown Mattingly

Here's a random card I scrounged out of the dollar box at the local hobby shop a couple of months back:

No, I did not get a 1984 Donruss Mattingly rookie for a buck. This is a 1993 Donruss "Special Commemorative Anniversary Edition" insert card. You can tell because the Yankees "swoosh" on the front of the card is done in silver foil, as opposed to yellow ink on the original card. The back of the card is also slightly different than the original:

The copyright date at top right displays 1993 and there is also a bar across the bottom letting you know that this is a special commemorative anniversary edition card.

Can anyone shed some light on this 10 card insert set? Were these randomly inserted into packs of Donruss' flagship set in 1993? If so, anyone know the odds? I found an eBay auction for card #7 from the set, Wade Boggs, also paying homage to his 1984 card. Were all 10 cards based on the 1984 design or were other years involved? What anniversary would Donruss have been celebrating in 1993 anyway, the 10th anniversary of the 1984 set?

So many questions. One day I would like to obtain the real deal, but until then I'm happy with this insert for a dollar!