Here's a lead? I think there was a builder/restorer that used to post a while back from up in the Northeast Kingdom of VT. I think his forum handle was "Kanoo" or something to that effect. At one point, he posted some great pictures of a labeled Waltham with birds eye maple decks.
I don't know what a marked Waltham short deck is, but I have a 17 ft Waltham with 15 inch decks and one deck has a small plate on it with the name Waltham on it. Is that what you are looking for?
OK, Well tomorrow I will take some pictures and send them off to you. (the canoe is a work in progress, but the decks are fine)
Forget the cigar, maybe a tour of your shop someday..