File:Phonautograph-cent2.png

Phonautograph-cent2.png ‎(244 × 226 pixels, file size: 51 KB, MIME type: image/png)

Summary

Description Phonoautograph
Date
Source Century Dictionary
Author uncredited 19th century engraving
Permission
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Public domain

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Other versions File:Scott phonautograph.png

File history

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Date/TimeThumbnailDimensionsUserComment
current20:11, 29 September 2007Thumbnail for version as of 20:11, 29 September 2007244 × 226 (51 KB)Alex:D{{Information |Description=Phonoautograph |Source=Centuy Dictionary |Date=1891 |Author= |Permission={{PD-Old}} |other_versions= }} Category:Phonography

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