I bought this in a batch of telephones. It looks in great as found condition and the dial rotates and returns beautifully. The mechanics are unusual as the dial speed is very fast but you can hear it still working after it has returned. This is not wired up to work as I don't have the keys to open in up and don't want to damage the triangular screws. It is very very heavy. I have a friend I can put you in touch with after purchase that can get it working for you but you will have to negotiate a price with him yourself. This would be great in a mining museum or as a collectors piece.