File:PSM V16 D221 Old Mathematical calculation 1.jpg

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PSM_V16_D221_Old_Mathematical_calculation_1.jpg (445 × 432 pixels, file size: 17 KB, MIME type: image/jpeg)

Description Old style mathematical calculation
Date between 1893 and 1894
date QS:P,+1893-00-00T00:00:00Z/8,P1319,+1893-00-00T00:00:00Z/9,P1326,+1894-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 44
Author Unknown authorUnknown author
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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: [https://archive.org/details/popularsciencemo16newy

Popular Science Monthly Volume 16].

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Date/TimeThumbnailDimensionsUserComment
current22:24, 2 February 2011Thumbnail for version as of 22:24, 2 February 2011445 × 432 (17 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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