Telephone apparatus used by New York subscribers. This used an Edison transmitter and a 'pony-crown' receiver (lower right of picture) From Amédée Guillemin. Dated 1891.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
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Keywords: apparatus, archival, archive, guilleminelectricelectricalelectricitycommunication, historical, history, telephone, telephoneapparatus, yorksubscribersedisontransmitterpony-crownreceiveréé