Posted By:
leonI only know of 1 AWA caramel, as well as anyone I have ever spoken with, has only seen it. I only know of 2 of the H812's (out of about 9 totally known) that are untrimmed and I heard of another T231 at the National but have not seen it....so there is 1 for sure, 1 xerox of one for sure, and potentially another one known....making those 3 series very rare.
As for high grade examples of other pre-war cards I think there are quite a few that are almost non-existent. I would think the T216 series with the paper stock would be tough in high grade. I have seen at least 1 E94 overprint in an SGC84 holder, otherwise they aren't usually found in high grade. As Jay pointed out there are other series that way too. regards