Novice telephone operators talking into a "voice mirror" which by means of a recording device, plays the voice right back so that they can determine if they are speaking clearly enough during training at New York Telephone Co. office.
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Details
Title: Telephones
Date: 1939
Location: New York, NY, US
Physical Dimensions: B/W PRINT
Subject Keywords:Us, Operators And Switchboards, Telephones, At&T, New York Telephone, Companies, Vintage Print, 1930s