English: Original caption: "ELECTRIC CARS FOR HAULING MAIL. Chicago Post Office Subway." The 2-foot (610mm) gauge Illinois Tunnel Company U.S. Mail car is on tracks the platform of Grand Central Station in front of a Pere Marquette U.S. Mail car, with an elevator down into the freight tunnels in the middle background. The tunnel mail car is a Bettendorf convertable car, see William P. Bettendorf's U.S. Patents 1,036,786, 1,039,638, 1,062,689 and 1,032,348 for drawings and descriptions of the car. Location inferred by comparison with other photos of the train shed interior, maps of the tunnel, and Google's photos of the former station site.
Date
Source
Frank C. Perkins, Electric Mail Transportation Through Chicago Subway, The Railroad Trainman, Vol XXV, No. 11, Nov. 1908; page 927.
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{{Information |Description={{en|1=Original caption: "ELECTRIC CARS FOR HAULING MAIL. Chicago Post Office Subway." The Illinois Tunnel Company U.S. Mail car is on tracks the platform of a railroad station in front of a [[: