Posted By:
leonFirst of all thanks for the kind words about the site. Unfortunately for my pocketbook it's not just a comprehensive list 
.....it's my collection. As stated previously I am selling off my 19th century cards for financial reasons (see definition of "addict") but still love collecting. The "toughest type" to acquire is a relative question. I have searched high and low for about 11 years and have an idea of "tough". I still haven't been able to get a hold of a D355. That being said Egan catalogued about 10 different ones so I feel confident there are more out there than the 1 I have seen before. I started out, at very first, doing the rookie HOF'er card quest but got tired of that after just a few years. No reason, I just did. I never really cared for the newer cards due to the oversupply of them and my nostalgic collecting habits. With my personality I have always like a variety of things so figured trying to acquire 1 of each ACC#'d pre-WWII card would be my goal, instead of building sets. With 19th Century included I guess I got to within 2-3 of completing my/the type set. I am not sure if that is very doable again but I guess with an unlimited budget it could be. Like the D355 there are a few that will just not be obtainable.....and of course my avatar, the T231, would probably be the toughest to find since I think I have the only physical one known....though I have been told about another I have never seen it. (I have seen the scan of the Xerox of Bigbee but no one knows where it is or if it exists anymore). Now that I am down to only needing a few 20th century cards I do upgrade to better types when I see one that catches my eye....and that happens about weekly .... Rarely do I sell the one that I upgraded from but sometimes I do. I find type collecting very enjoyable and there are no boundaries.. The other aspect about collecting cards in general are the friendships made. IMO about 99% of collectors are good folks...those other 1% are rascals though.......take care