File:PSM V08 D319 Machine for sand blast engraving of flat plates.jpg

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Description Machine for sand blast engraving of flat plates
Date between 1875 and 1876
date QS:P,+1875-00-00T00:00:00Z/8,P1319,+1875-00-00T00:00:00Z/9,P1326,+1876-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 8
Author Unknown authorUnknown author
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current03:15, 8 July 2010Thumbnail for version as of 03:15, 8 July 20101,653 × 1,997 (586 KB)Ineuw{{Information |Description = Machine for sand blast engraving of flat plates |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_8.djvu/319 |Date = 1875-1876 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} {{

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