I've been a fan of the forum and finally signed up. My card collection is small but I do have strong opinions as to what I like. A favorite set is 53 Parkhurst, with Beliveau and Worsley rookie cards etc. I've just started buying c56s- beautiful cards!
I'm glad to see that we have been picking up some new members lately! I have a couple of cards from 1953 Parkhurst, and I completed the C56 set just over a year ago.
This is a good time to be working on the C56 set. It seems that the prices are a bit lower than they were 3 years ago. (Except in cases of Buy It Now cards.) When cards are put up for auction with a decent opening bid, they are going for pretty decent prices. I'm not sure if the competition for the cards is less at the moment or not.
Joe, that is a really good question. It would seem that both the Charlton and Beckett have 1 1/2 x 2 1/2, the VHC has them at 1 7/16 x 2 5/8, however, due to the process that was used to cut these cards, there is some that vary, much like the 1951-52 Parkhurst, even though they have a standard size.
Considering it was the 1910's and to cut a card perfect everytime maybe a lot to expect, especially in a era of using lito-stone technology for printing.
Having handled many similar year card sets from other sports and non-sports, they are consistant with the C-Series size differences.
Thus there is no perfect answer to your question but we know they should be between the two different measurements listed by the three guides.