One of my finest clocks, a Dachluhr Vienna Regulator. Technically, it is a clock simply in the Dachluhr style. A regulator with dead beat escapement and maintaining power.
Not sure exactly what age this is, best guess is late 1800’s. I rebuilt and cleaned the movement and discovered that the maintaining power (MP) spring had failed. A previous tinkerer had fashioned a bent piece of wire as a substitute, forcing the maintaining wheel and main wheel apart. I have removed the bent wire and pinned the two wheels together temporarily while I hunt the world for a replacement MP spring. Any suggestions are welcome!