Steam cog locomotive - GIF
Locomotive No. 9 "Waumbek" of the Mount Washington Cog Railway. Built by Manchester Locomotive Works in 1908, Waumbek was the first cog locomotive with the cab and boiler on the same plane, both equally canted.
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More:
https://www.thecog.com/
https://www.thecog.com/New_Moon_Cog_RW.pdf
Previously:
https://www.homemadetools.net/forum/...444#post131719
https://www.homemadetools.net/forum/...917#post119761
https://www.homemadetools.net/forum/...1817#post75199