A rare Continental year-going wall regulator, the engraved silvered Roman dial signed Camerer Cuss & Co. London with blued spade hands, the six double-screwed pillar twin-plate movement with large spring barrel and finely pitched fusee with maintaining power, dead-beat escapement with adjustable steel pallets and mercury jar pendulum, the architectural case of Viennese style with flame mahogany backboard and silvered beat scale