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File:PSM V43 D686 Cache blades from bridge valley pa.jpg

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Description Cache blades from Bridge Valley, Pa.
Date
Source Popular Science Monthly Volume 43
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 43.

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current11:09, 24 December 2015Thumbnail for version as of 11:09, 24 December 20151,675 × 1,015 (130 KB)Ineuw (talk | contribs)Cleaned image and improved contrast
10:29, 28 January 2011Thumbnail for version as of 10:29, 28 January 20111,550 × 825 (167 KB)Ineuw (talk | contribs){{Information |Description = Cache blades from Bridge Valley, Pa. |Source = [http://www.archive.org/details/popularsciencemo43newyuoft Popular Science Monthly Volume 43] |Date = 1893 |Author = Unknown |Permission = {{

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