File:EB1911 Railways - Engine Efficiency Curves.jpg
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| Description |
English: Engine efficiency curves for a steam locomotive. |
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| Date | published 1911 | |||
| Source | “Railways,” Encyclopædia Britannica (11th ed.), v. 22, 1911, fig. 22, p. 848. | |||
| Author | Unknown author | |||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:23, 26 July 2017 | | 833 × 547 (132 KB) | Bob Burkhardt (talk | contribs) | {{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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