The fact that the Standard Catalogue and I agree - or that the Standard Catalogue agrees with anyone else - is a happy coincidence, little more. There's still a LOT of confusion about issue dates for this set, and there are still many M114's popping up that have never been catalogued. Researchers grinding their way through issues of the magazine have compiled lists of these posters as they were advertised, but the notices of new M114's provided by Baseball Magazine didn't usually include photographs of the new offerings. Which means that it's very difficult to tell when one photo of player X was replaced by another, and it doesn't account for posters that have surfaced that never seem to have been advertised in the magazine! I even have one M113 of a player who's NEVER appeared in a checklist - so who knows?
All that having been said, the Standard Catalogue and I agree that the Cy Young picture is from 1951. I think.
