Title: AT&T chart -- Four simultaneous conversations, 1928
Category: PHOTOGRAPHS
Overall Size: 8 x 10 in.
Date Created: 1928-04-03
Photographer: Rosenfeld and Sons
Description: 8x10 gelatin silver print from 8x10 safety negative photographed by Rosenfeld and Sons on April 3, 1928. Image of AT&T chart of four simultaneous conversations. Visible in image: line drawing of "FOUR CONVERSATIONS / TRANSMITTED SIMULTAN-/ EOUSLY OVER ONE PAIR / OF WIRES BY CARRIER / METHOD" and "Two Important Parts of the / Apparatus at the Terminals. / VACUUM TUBE / ELECTRICAL FILTER" showing "1" a man in one office talking to a man in another, "2" a man in a hotel room talking to his wife at home, "3" a man at the oil fields talking to the home office, and "4" a farm agent talking to a farmer, while two men patch their calls through at the switchboard, a view of telephone lines in the country is the centerpiece. CREDIT LINE: Mystic Seaport, Rosenfeld Collection. Handwritten on back: "31336 BOX 1786 (AT+T Co) 4/3/28".
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