I can try, but first thing's first, a photo or two would really help out, manuals don't exactly exist for 115 year old safes, so its good to see some photos of the door, base, hinges, relative size, a close up of the dial, any handles and knobs, etc all in good detail to be able to pin down a model and then look up what kind of lock with how many wheels that safe normally came with from the factory.
Does the auction house not remember if it was 3 or 4 numbers to the combination? I guess it's a mute point now, but you'd think they would have it on file and not just on a piece of paper taped to the safe.
To show us photos, upload them to your Flickr, Instagram, Photbucket account, or to
http://imgur.com or
http://tinypic.com and Paste the links in here.
Have you manipulated a safe lock before, you seem to know enough about picking up wheels and counting them. If this is a first for you, safe manipulation (cracking) is no easy task, and not as easy as you might see in a movie where they hear clicks and open the door in 5 minutes.
Can't wait to see the photos, I like old Mosler safes.
Squelchtone