File:PSM V41 D660 Automatograph trace of 25 second hand movement.jpg

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Description Automatograph trace of 25 second hand movement
Date
Source Popular Science Monthly Volume 41
Author Unknown authorUnknown author
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Extracted image from book, to grayscale, cropped whitespace. Modifications made by Ineuw. The original can be found here: Popular Science Monthly Volume 41.

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current08:34, 5 January 2011Thumbnail for version as of 08:34, 5 January 20111,115 × 373 (18 KB)Ineuw (talk | contribs){{Information |Description = Automatograph trace of 25 second hand movement |Source = [http://www.archive.org/details/popularsciencemo41newy Popular Science Monthly Volume 41] |Date = 1892 |Author = Unknown |Permission

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