Here are links to a couple of complete Canadian Grape nuts boxes that sold. Perhaps if you could get in touch with the winner(s) - you could get a lead on some of the information you are looking for. I was a bidder, but dropped out feeling they got a little rich for my blood - now if there was a Clemente............
http://feb13.hugginsandscott.com/cgi...l?itemid=53722
http://feb13.hugginsandscott.com/cgi...l?itemid=53721
I also have some type of advertisement somewhere that may have some info - I will try to look for it in the next week or so.