File:PSM V16 D222 Old Mathematical calculation 2.jpg
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Size of this preview: 800 × 487 pixels. Other resolutions: 320 × 195 pixels | 640 × 389 pixels | 942 × 573 pixels.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:25, 2 February 2011 | 942 × 573 (28 KB) | Ineuw | {{Information |Description = Old style mathematical calculation |Source = [http://www.archive.org/details/popularsciencemo16newy Popular Science Monthly Volume 44] |Date = 1893-1894 |Author = Unknown |Permission = {{P |
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