File:PSM V22 D169 Greenwich clock escapement.jpg

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Description Greenwich clock escapement
Date between 1882 and 1883
date QS:P,+1882-00-00T00:00:00Z/8,P1319,+1882-00-00T00:00:00Z/9,P1326,+1883-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 22
Author Unknown authorUnknown author
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Date/TimeThumbnailDimensionsUserComment
current20:54, 13 July 2014Thumbnail for version as of 20:54, 13 July 20142,000 × 1,155 (224 KB)Ineuw (talk | contribs)Cleaned image and improved contrast
03:49, 29 August 2010Thumbnail for version as of 03:49, 29 August 20102,124 × 1,300 (318 KB)Ineuw (talk | contribs){{Information |Description = Greenwich clock escapement |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_22.djvu/169 |Date = 1882-1883 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category:Popular Sc

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