Printed on back: "LIGHTS 'LAST SUPPER' SCENE--The complicated electrical circuits and controls that automatically light the life-sized scene of the 'Lord's Last Supper' are shown here. Mr. George Whitney, owner of San Francisco's 'Playland' is studying the circuits with electrician Paul Overmohle (right). Colored lights change during each showing of the display while a recording device broadcasts narrative and music.".