[Marinocollector]

I can not imagine those encased cards were ever inserted in to packs though, which makes it a minor mystery (box toppers?).
On a side note, the 1997 1/1 Metal Die Prizes appear to come with encased base cards as well.

Action Packed sold the holders. Either through the hobby store ordering them or direct.

[nittany13]

Action Packed sold the holders. Either through the hobby store ordering them or direct.

Hmm...that would explain it. It's a cool concept that a company would produce and separately sell specialty holders designed for their own cards. Thanks for clearing up that mystery.