Safety lamp, Stephenson, by George Knight & Son, London, marking: makers name, 1839-1857. Stephenson's Safety Lamp, 1839-1857 1839-1857
Model of Dover Castle clock, scale 1:3, with striking mechanism and single bell mounted on wooden frame. Model of Dover Castle Striking Turret Clock, with Foliot Timekeeper, c. 1600 1600-1610