Philip Reis experimenting with the telephone
Philip Reis, the inventor of the Telefone experimenting. He is playing the violine into a mikrophone so that the pupils can hear it in another room. Engraving. Germany. Around 1930
Picture No
10251219
Media ID
46054929
Size
2496px x 3543px
(4.3MB)
Credit
Mary Evans/brandstaetter images
Date
1860
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Experimenting Hear Pupils Reis Violine
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