Community / Occupation / Trackwork
ca. 1940
The numbers on this rail superelevation marker designate the inches of height above level of the outer rail of a curve. Raising one rail tilts the train as it passes over, banking it into the turn. Trains can then take the curve at higher speeds.
Aluminum. L 10.4, W 5.2, T 0.2 cm
Steamtown National Historic Site, STEA 553