Although its pretty well edited, there's a body double used in the really up close and personal scenes of Rosalba Neri's masturbation sequence. In fact you can see Neri has an operation scar visible on her stomach in one scene which is then conspicuously absent from the other lower body on display in the harder material.
Several scenes feature the medieval torture device known as an "iron maiden". Actor John Karlsen who plays Professor Osterman (and who discovers a body in the device) is well known for his role in "Bill and Ted's Excellent Adventure" where he says the line "Put them in the iron maiden!"
Mara can be seen reading French news magazine "Jours de France".
Italian censorship visa # 58094 delivered on 7-5-1971.