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File:Porter-Allen high-speed engine (New Catechism of the Steam Engine, 1904).jpg

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Description Porter-Allen high-speed 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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current18:14, 23 June 2009Thumbnail for version as of 18:14, 23 June 20091,242 × 729 (173 KB)Andy Dingley{{Scans from 'New Catechism of the Steam Engine', 1904}} Category:High-speed steam engines <!--{{ImageUpload|basic}}-->

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