The Pennsylvania lines west of Pittsburg :
locomotive testing plant at the Louisiana Purchase Exposition, St. Louis, Missouri, U.S.A., 1904 /
Pennsylvania Railroad Company.
|Corporate Author:||Pennsylvania Railroad|
[Philadelphia?] : The Railroad, c1904.
Exhibitions > Exhibitions / Missouri > Exhibitions / Missouri / Saint Louis.
Locomotives > Locomotives / Testing
"Methods used in tests"--P. 
33 p. ;
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