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File:PSM V25 D789 Personal symbols used to record information.jpg

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Description Personal symbols used to record information
Date
Source Popular Science Monthly Volume 25
Author Unknown authorUnknown author
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current05:47, 28 February 2011Thumbnail for version as of 05:47, 28 February 2011514 × 2,911 (87 KB)Ineuw{{Information |Description = Personal symbols used to record information |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_25.djvu/789 |Date = 1884 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Categor
01:30, 3 September 2010Thumbnail for version as of 01:30, 3 September 2010591 × 2,911 (87 KB)Ineuw{{Information |Description = Personal symbols used to record information |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_25.djvu/789 |Date = 1884 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Categor

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