Movement of a 3-train turret clock by E. Dent and Co., (made about 1939); the going train with Grimthorpe's double 3-legged gravity escapement; the striking train and Westminster quarters controlled by locking plates; with 1 1/2 second pendulum Movement of a 3-train turret clock by E. Dent and Co. 1939
Electric clock companion movement of the Grau and Wagner type by Electro-Zeit Electric clock companion movement