content: What originals?  Got any pictures or documentation of them?  The only surviving "extermination chamber" was the one in Auschwitz, and it's a "reconstruction".  There were smaller rooms that do show Zyklon B residue and metal doors, but they were specifically made for delousing clothes and wouldn't fit a large number of people in them.  Those rooms still contain the delousing machines or evidence of where they were mounted and were never disguised as showers.  It was all a Jewish fantasy, a fantastic lie to convince the world to support the creation of Israel.