File:Backus upright gas engine (New Catechism of the Steam Engine, 1904).jpg

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Description Backus upright gas engine (New Catechism of the Steam Engine, 1904).jpg
Source Scan from Hawkins (b.1833), Nehemiah (1904 edition of 1897 book. Originally published in 1897, later expanded to cover internal combustion engines.) New Catechism of the Steam Engine, Category:New York: Theo Audel
Author Andy Dingley (scanner)
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current22:19, 25 February 2010Thumbnail for version as of 22:19, 25 February 2010771 × 1,288 (195 KB)wikimediacommons>Andy Dingley{{Scans from 'New Catechism of the Steam Engine', 1904 |figure= |page= |title= |description= }} Category:Gas engines

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