I like Scott's theory about faulty gloss causing the card to lighten over time.
I also think Ralph's explaination about wax being put on cards and then being removed later to cause the card to lighten makes sense. This theory also jives with the fact that there's so few of these cards around. It seems that if the gloss used on the cards was faulty - we'd be seeing a lot more of these. Out of the mere two I've seen now, one is a series 5, the other is a series 2. So it could be just one collector who had a few cards he was trying to protect.
However, this sort of an issue isn't something I see on cards from other sets. You'd have to assume that the collector who used the wax had more than just simply t210s right?
Another thing, if wax was indeed placed on the cards and left for years, it doesn't seem to me that you could just remove it by smoothly peeling it off. Wouldn't it dry and harden eventually like paste? This would cause it's removal to create a residue on the card or take little pieces of the paper with it
Also, still am pondering how any sort of faulty gloss being used or wax would result in the captions turning blue. I can totally see the caption being lightened up by either occurance but that would just make it a light greyish color if anything. Wouldn't turn it into a random color like blue. That's just really weird and is one of the ways that Jim's card differs from mine a bit.
Good discussion so far