The standard code of operating rules, block signal rules and interlocking rules :
adpoted 1949 : includes authorized revisions up to October 1, 1953.

Description

Corporate Author: Association of American Railroads. Operating-transportation Division. Operating Section.
Language(s): English
Published: [Chicago, 1953, c1949]
Subjects: Railroads > Railroads / United States > Railroads / United States / Management.
Railroads > Railroads / United States > Railroads / United States / Signaling.
Note: Previous editions published under title: The standard code of the American Railway Association. Train rules, block signal rules, interlocking rules.
Physical Description: 124 p. : ill. ; 15 cm.
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Item Link	Original Source
Full view	University of Illinois at Urbana-Champaign