The front end of a steam locomotive showing the walschaerts valve gear

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Size: 4010px × 2668px
Photo credit: © patrick nairne / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arm, british, combination, coupling, crosshead, cylinder, cylinders, engine, engineering, english, front, gear, lever, loco, locomotive, mechanical, rods, steam, transport, valve, walschaerts, wheel