Can't seem to figure the ST qualifier on this card.
The attached card is graded 8(ST). Well, to me, a stain would not be consistent across the card, more like a blotch here and there. The card shows a slightly darkened hue, consistent across the card and evenly distributed. I've seen 55 Topps, with obverse darkening because of the big slab of bubble gum that used to come with the cards. Not really complaining about the grade, just don't see how they got to that conclusion. What am I missing?