This copy of the 1946 ACC was discussed back in February on the non-sport Net54 board, with scans of many pages being posted by the original poster, "Jeff". They also suspected that it belonged to a member of the inner circle, but couldn't figure out who.
http://www.network54.com/Forum/52660...llectors+Guide
I assume you're not "Jeff", but maybe you got this from him? In any case, it's a really cool piece. I have a lot of old hobby publications, but nothing quite this cool.