File:PSM V39 D635 Making spectacle lenses.jpg
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DescriptionPSM V39 D635 Making spectacle lenses.jpg | Making spectacle lenses | |||||
Date | ||||||
Source | Popular Science Monthly Volume 39 | |||||
Author | Unknown authorUnknown author | |||||
Permission (Reusing this file) |
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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 greyscale, cropped whitespace. The original can be viewed here: Popular Science Monthly Volume 39.djvu: . Modifications made by Ineuw.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:07, 13 October 2015 | 2,598 × 1,686 (1.12 MB) | Ineuw (talk | contribs) | Cleaned image and improved contrast | |
20:35, 27 November 2010 | 2,602 × 1,693 (1.39 MB) | Ineuw (talk | contribs) | {{Information |Description = Making spectacle lenses |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_39.djvu/633 |Date = 1891 |Author = Unknown |Permission = {{PD-old}} |other_versions = } |
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