| View Original: | Transcription of sound recording in Alexander Graham Bell's handwriting - National Museum of American History - DSC00102.jpg (-3648x5472) | |||
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| Keywords: Transcription of sound recording in Alexander Graham Bell's handwriting - National Museum of American History - DSC00102.jpg en Exhibit in the National Museum of American History Washington DC USA Photography was permitted in the museum without restriction 2015-03-27 11 02 27 own Daderot other versions PD-1923 cc-zero Graphophones in the National Museum of American History Alexander Graham Bell | ||||