File:Pennsmachine.svg

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Description
English: A marine steam engine – "Penn's double trunk engine"; developed by John Penn (John Penn and Sons) in the 19th century – edited version with Spanish caption of fig. 720 from the German book Der Weltverkehr und seine Mittel (10th edition, 1913).
Español: descripcion del funcionamiento de la maq de Penn
Date before 1913
date QS:P,+1913-00-00T00:00:00Z/7,P1326,+1913-00-00T00:00:00Z/9
(already published earlier)
1913 (publication in the 10th edition of the book = source)
2017 (edited by Juan Villalobos)
Source

This file was derived from: Der Weltverkehr und seine Mittel. 10. Aufl. 1913 - Abb. 720 Penns Doppeltrunkmaschine.png

Der Weltverkehr und seine Mittel (10th edition, 1913), p. 699
Internet Archive identifier: derweltverkehrun00merc
https://archive.org/stream/derweltverkehrun00merc#page/698/mode/2up
Author
AnonymousUnknown author (original illustrator not stated)
edited by Juan Villalobos

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current17:19, 17 December 2017Thumbnail for version as of 17:19, 17 December 2017971 × 375 (523 KB)Juan Villalobos (talk | contribs)User created page with UploadWizard

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