Notice the length of the site glass. this is necessary due to the boiler being tilted. The cab crew must get a accurate reading of the boiler water level when the engine is on flat ground as well as climbing the step grades of the mountain.

Photographed by Rich Currie, November 3, 2006.
Added to the photo archive by Rich Currie, November 12, 2006.
Railroad: Mt. Washington Cog Railway.

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