Photos 16, 17 and 18

Gas-tight door of the gas chamber, of conventional design (made by the DAW) with its peephole and two locking bars, each of which fitted into a metal catch through which a threaded rod, bent to form a handle, was screwed, completely blocking the latch and ensuring that the door was tightly closed.

Photo 19

Close up of the gas chamber and the fanlight used to assist narural ventilation.