Sergius T. Grace,J.R. Ericson,R.M. Pease,Bell Labs

Title: Hearing without sound vibrations - using body as conductor, ...
Date Created/Published: [19--]
Medium: 1 photographic print.
Summary: New York - Sergius T. Grace, vice president of the Bell Telephone Laboratories; J.R. Ericson; and R.M. Pease of the laboratories, performing a mysterious experiment of transmitting sound without ordinary sound vibrations, before a meeting of the Electrical Association of New York. A wire from phonograph is held in Mr. Grace's right hand. His left hand is insulated by paper and place to Mr. Ericson's head.
Notes:
No. 10365B3.
This record contains unverified data from caption card.
Caption card tracings: B.I.; Telephone; Electricity.
Bookmark /2002709413/
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