Typed note included with photo: "Peter Dahl, staff member in charge of the audio-visual section of educational media services, uses an intercom to order a video tape from the control room to be shown on television monitors in a multi-media auditorium in Miller Hall. From the console, the operator can control volume, light level, raise and lower a motion-picture screen or control rear-screen slide or motion-picture projectors. Audio tapes or a phonograph can also be operated from the unit. Handwritten note on photo verso: "A-25-3". Original inventory # 941.7