About this detail of the Tiger
The Tiger's turret was rotated by the engine via a hydraulic gearbox on the turret floor. The gunner controlled the rotation with pedals.
This German diagram, from the Turret Manual, shows two "Fußblech" (pedal) at bottom left, and their linkage to the gearbox. The center of the turret is marked "Mitte" and the forward direction is marked "Schußrichtung".
This photo shows the pedal mount in the surviving Tiger that belonged to s.Pz.Abt.501. This is the original design, with a single pedal that rocks back or forwards. The linkage to the gearbox is broken and the paint is not original.
These are the pedals in the Tiger at Bovington Museum. Thanks to a redesign, there are now two main pedals, as shown in the diagram above. The linkage arm to the hydraulic gearbox is intact. Also, we can see that the item closest to us is a foot trigger for the turret MG. All paint here is original.
This is the gunner's view of the pedals. The gunner's seat (missing its cushion) is visible at the bottom of the photo. You can see that the pedals are not directly in front of the seat; because of the round turret floor, they are offset to the right and rotated slightly. The gunner of a Tiger was obliged to sit in a twisted position.