By its victim count, Sobibór is among the smallest of the four “Aktion Reinhardt” camps, which according to orthodox historiography served as “pure extermination camps” for the mass murder of Jews in gas chambers. The other camps are: Belzec, Chelmno/Kulmhof, and Treblinka.
Mainstream holocaust writer Jean-Claude Pressac spotted what he called a "Soviet put up job" - a clear attempt by the Soviet War Crimes Commission to falsely portray an ordinary delousing chamber in the Central Sauna section of Auschwitz-Birkenau as homicidal in nature. Much credit is due to him for this observation, however he failed to ask a critically important question: If there were real homicidal gas chambers a literal stone's throw away, why undertake an effort to fake this one? Pressac unfortunately does not appear to ask himself this question and passes over the significance of a Soviet hoax gas chamber with accompanying propaganda photo spread without a second thought. For photos of the faked gas chamber and Pressac's commentary, see http://www.holocaust-history.org/auschwitz/pressac/technique-and-operation/pressac0046.shtml and following pages.
If the Soviet War Crimes Commission faking a gas chamber isn't bad enough, it gets worse. There is a definite pattern here.