Category:Microphones in the 1890s

Media in category "Microphones in the 1890s"

The following 5 files are in this category, out of 5 total.

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  (King1893NYC) pg218 TELEPHONE OPERATING OR SWITCH-ROOM, METROPLOITAN TELEPHONE AND TELEGRAPH COMPANY.jpg 1,335 × 854; 835 KB
  
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  African American man with telephone art detail from sheet music cover- Hello Ma Baby (cropped).jpg 586 × 533; 194 KB
  
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  Headset - Ericsson 1897.png 663 × 874; 285 KB
  
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  Rousselots Apparat zur Aufzeichnung der Sprache.jpg 1,601 × 1,248; 1.73 MB
  
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  Telephone Exchange Operators 1893.jpg 665 × 406; 109 KB