File:PSM V14 D024 Green and gray papers for contrast experiment.jpg
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![File:PSM V14 D024 Green and gray papers for contrast experiment.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/2/22/PSM_V14_D024_Green_and_gray_papers_for_contrast_experiment.jpg/592px-PSM_V14_D024_Green_and_gray_papers_for_contrast_experiment.jpg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:23, 11 February 2016 | ![]() | 601 × 609 (14 KB) | Ineuw | centered image |
15:06, 5 August 2010 | ![]() | 660 × 633 (15 KB) | Ineuw | {{Information |Description = Green and gray papers for contrast experiment |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_14.djvu/24 |Date = 1878-1879 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Ca |
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