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Tonograph From 1841 ( Tonometer ) Of Samuele Cagnazzi , First Instrument For Rec ...

Tonograph From 1841 ( Tonometer ) Of Samuele Cagnazzi , First Instrument For Rec ...

  Stockphoto ID: 1848234

File name: 87878.jpg
Format: film, 35mm
Property release: no Model release: no
Source: photo agency Based in: United Kingdom

Description: Tonograph from 1841 ( tonometer ) of Samuele Cagnazzi , first instrument for recording the voice

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