(1929). --freight train symbol book: Effective December 1, 1929 : containing a list of freight trains, with explanations showing the class of freight handled by each train and proper manner of handling in terminal yards and at connecting points --. [Philadelphia?.

--freight Train Symbol Book: Effective December 1, 1929 : Containing a List of Freight Trains, With Explanations Showing the Class of Freight Handled By Each Train and Proper Manner of Handling in Terminal Yards and At Connecting Points --. [Philadelphia?, 1929.

--freight Train Symbol Book: Effective December 1, 1929 : Containing a List of Freight Trains, With Explanations Showing the Class of Freight Handled By Each Train and Proper Manner of Handling in Terminal Yards and At Connecting Points --. [Philadelphia?, 1929.