Image: Brandes Superior Matched Tone c. 1919-21
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Description: Photo of antique headphones; Brandes manufactured between 1919 and 1921. These were used in early radio work and illustrate the original context of the term "headphones."
Title: Brandes Superior Matched Tone c. 1919-21
Credit: Photograph taken of author's headphones and provided by author.
Author: John Davidson
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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