Geared steam locomotive - Wikipedia
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Shay locomotive - Wikipedia

True Articulated Steam Locomotives Part 1

Geared steam locomotive - Wikipedia

Geared steam locomotive - Wikipedia

Stephenson valve gear - Wikipedia
What purpose did the 'wings' at the front of European steam

Steam locomotive, Locomotive Wiki
Geared Steam Locomotives. Shay, Climax and Heisler for steep…

Climax locomotive, Locomotive Wiki
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