File:19th century knowledge mechanisms wood leather and emery polishing wheel 2.PNG

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English: 19th century knowledge mechanisms wood leather and emery polishing wheel
Date
Source Emery grinding machinery: a text book of workshop practice in general tool ...
Author Richard Broom Hodgson

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current21:12, 9 December 2009Thumbnail for version as of 21:12, 9 December 2009525 × 506 (160 KB)Jonp154 (talk | contribs){{Information |Description={{en|1=19th century knowledge mechanisms wood leather and emery polishing wheel}} |Source=Emery grinding machinery: a text book of workshop practice in general tool ... |Author=Richard Broom Hodgson |Date=1903 |Permission= |oth

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