Posted By:
Frank WakefieldT210s are fascinating, and to a large extent under the radar.
I think everyone on this board knows about them. But I think only a dozen or so board folks actually chase the cards. Major negatives are the cards are of the minor leagues, the number of cards issued, the black and white images (as opposed to color), and the fragility of the cards. Most of the guys on this board would go after T206s, then T205s, then T207s before chasing T210s.
I believe that this soft demand on the cards results in the prices for them being somewhat low, relative to the quantity of cards out there. I've looked at prices of T cards over the years, and talked with guys that bought cards in the 50s and 60s. I think there are about 20 times as many T206s as T207s, about 8 to 10 times as many T205s as T207s, and about half as many T210s as there are T207s.
As for the series, I think series 8 is ever so slightly more difficult than series 6. I'd definitely put series 7 behind 8 and 6. After that, the series are pretty close, with 5 being just a bit less plentiful than 1, 2, 3, and 4... but those five series are all close. For certain, series 6 and series 8 cards are difficult to track down.
There are some cards that seem to be less available than others. I think that 3 generations from now this will be clear. Anyone attempting to complete the last 3 series will encounter a few cards that are seldom seen, seldom offered.
I keep thinking I'm about to put a bunch of low series cards up on eBay. I might work on that this evening. Good luck chasing these rascals!