PRR X31A Question

gary laakso

The current issue of Classic Trains, Summer 2022, on page 52 has an October 11, 1952 picture of a Western Maryland train with a PRR X31A in the lower center of the picture.    There is a rectangular plate with 4 small bolts at the corners and three large bolts in the center of the plate that is located at the top of the roof curve above the door with the tackboard on it.  The plate maybe 7 inches by 18 inches.   What could the plate be used for?


Of course, the photo does not have a car number shown. 


Gary Laakso

Northwest of Mike Brock


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