File:PSM V07 D712 Light measuring apparatus.jpg
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Size of this preview: 562 × 599 pixels. Other resolutions: 225 × 240 pixels | 450 × 480 pixels | 720 × 768 pixels | 961 × 1,024 pixels | 1,729 × 1,843 pixels.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:29, 4 July 2010 | 1,729 × 1,843 (88 KB) | Ineuw | {{Information |Description = Light measuring apparatus |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_7.djvu/712 |Date = 1875 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} {{GFDL-user-w|en|Wikisource|I |
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