Four-foot phone dial from 1931 initiated students to "mysteries of dialling"

Back in July, 1931, the Western Secretarial school whipped up this four-foot high working telephone dial to help initiate its students into the mysteries of the tele-phonic business instrument.
Not a dummy, the big dial actually works. It is connected with two telephones, an amplifying apparatus, and a loudspeaker. When the instructor dials a number, the loudspeaker reproduces, so that all may hear them, the typical sounds that will be heard; and the instructor explains to the pupils what they mean.
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