hmmm.. I think by offset you mean indirect drive, that's what that style mechanism is called. Hello from Springfield, MA by the way. so hey.. better talk to the previous owners and ask them where the hell the safe locks are that they removed, because you're not and I repeat, you're not ever in hell gonna find replacements for 100 year old locks. They didn't remove the offsets as you call them, it appears they straight up removed the safe locks from the door leaving only the base plates where the dial gear is mounted to. Are the locks anywhere in the safe/vault/room near by? It's not something one would just throw out.
It's just not something a locksmith is gonna have sitting on the shelf, there is no new parts or original parts sitting on a shelf anywhere other than museum pieces on ebay. Luckily, the oldest safe/locksmith in the US is in Boston, so you could go to Brighton, and bring your photos to Boston Safe & Lock http://www.bostonlockandsafe.net/
(love their 90's site) and hope they might have some spare parts, they may sell you each lock for $250-$500 dollars. Otherwise they could maybe put in a modern day indirect drive S&G vault lock that might fit the mounting pattern of the old one, but to me it wouldn't feel right putting a modern lock on an antique door. What does is say on the dials on you door? is it Diebold or Sargent & Greenleaf? is the inside door that has the 2 dials on it also missing both lock mechanisms?
tl:dr unless you find the removed parts kicking around your condo in the safe, or somewhere near by, you probably will never find the correct parts to make that safe door work properly again.