Beauty by ' Mass Production ' methods . Beauty treatment has been organised on the lines of ' Big Business ' in America and 'mass production ' methods introduced to the salons . Though the client is not actually placed on a moving belt , she moves from one department to another for each special treatment , as this series of pictures , made in a Fifth Avenue , New York , salon , shows . Photo shows , physical exercise , which slims the hips and contracts the abdominal and thigh muscles , provide the final treatment . 13 March 1937