File:EB1911 Railways - Engine Efficiency Curves.jpg

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Original file (833 × 547 pixels, file size: 132 KB, MIME type: image/jpeg)

Description
English: Engine efficiency curves for a steam locomotive.
Date published 1911
Source “Railways,” Encyclopædia Britannica (11th ed.), v. 22, 1911, fig. 22, p. 848.
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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Date/TimeThumbnailDimensionsUserComment
current20:23, 26 July 2017Thumbnail for version as of 20:23, 26 July 2017833 × 547 (132 KB)Bob Burkhardt{{Information |Description ={{en|1=Engine efficiency curves for a steam locomotive.}} |Source =“Railways,” ''Encyclopædia Britannica'' (11th ed.), v. 22, 1911, fig. 22, p. 848. |Author =unknown artist |Date =published...
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