Lets see how old is the camera? How old is the gear lube? Even if it works how long will it take to ruin the gears if run with sticky or solid gummed up lube? If you want a camera and not a show piece you should at least have it opened and inspected. I have seen what happens to the guts of these old queens when run dry over a long time and its not pretty. Its up to the OP of course but rare beauties like that one deserve to be used as a camera not a display.
I didn't notice the OP's location so IDK if Don Goldberg would be the best choice but the camera should be looked at.
Lol my 4 cents.