File:PSM V16 D220 Old Mathematical calculation 1.jpg

Description Old style mathematical calculation
Date between 1879 and 1880
date QS:P,+1850-00-00T00:00:00Z/7,P1319,+1879-00-00T00:00:00Z/9,P1326,+1880-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 16
Author Unknown authorCategory:Template Unknown (author)Unknown author
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Public domain

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Category:PD-old missing SDC copyright status
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Category:CC-PD-Mark Category:PD OldCategory:PD-old missing SDC copyright status
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 16.

Category:Retouched pictures#PSM%20V16%20D220%20Old%20Mathematical%20calculation%201.jpg Category:Popular Science Monthly illustrations/Volume 16 Category:Images created or edited with IrfanView Category:Mathematical education Category:Arithmetic algorithms
Category:Arithmetic algorithms Category:CC-PD-Mark Category:Images created or edited with IrfanView Category:Mathematical education Category:PD Old Category:Popular Science Monthly illustrations/Volume 16 Category:Retouched pictures Category:Template Unknown (author)