Hi I've recently acuired a pretty 1900s dominion safe and vault Co. I purchased this safe for 20 bucks in London Ontario from an old gentleman who owned a factory the lock and handle move without ease and the door will shut and secure the problem is the previous owner didn't have the combination. Now I'm looking to retumble the locks to get a new combination and was wondering how I'd go about this and possibly what the safe is worth with a new combination and fully operational.