Rear section seen from below. Horizontally below is the drive shaft located: From left to right 15th Pinion for oscillating the control shaft via eccentric, 30th Pinion for driving the running, 25th contrate gear for driving the control shaft, 45th Spurgear for driving the shaft itself from the motor. Horizontally above it the drive shaft of the rear legs for walking. Märklin bevel gears transmit the movement to the front legs. Vertically the rear end of the control shaft of the sequential gearbox with 1/2" 19th pinion