File:PSM V45 D233 Negative and positive eyepieces.jpg
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DescriptionPSM V45 D233 Negative and positive eyepieces.jpg | Negative and positive eyepieces | |||||
Date | ||||||
Source | Popular Science Monthly Volume 45 | |||||
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 grayscale, cropped whitespace. Modifications made by Ineuw. The original can be found here: Popular Science Monthly Volume 45.
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current | 10:40, 18 February 2011 | 1,486 × 357 (23 KB) | Ineuw (talk | contribs) | {{Information |Description = Negative and positive eyepieces |Source = [http://www.archive.org/details/popularsciencemo45newy Popular Science Monthly Volume 45] |Date = 1894 |Author = Unknown |Permission = {{PD-old}} |
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