Here we have regular Mark McGwire. You'll be so kind as to notice the shiny, silvery foil background.
Let me introduce you to white Tony Gwynn. Over 10 years ago, this card came out of the pack without the foil background. You can see a couple of spotches just to the left of the Fleer Ultra logo. I don't know the story behind this other than to assume it was a printing error.
Have you ever seen/heard of this before with these cards?