"Assembly line sex" Great image for early porno from the San Francisco-based Mitchell Brothers (this poster comes from the estate of one of the brothers, and was likely used at their SF theater); the film was produced and likely first released in 1970 but there is a 1974 copyright text on the poster that indicates a re-release, after the successes of BEHIND THE GREEN DOOR (1972) & RESURRECTION OF EVE (1973); actual size is 23"x35"