50 years of railroad signaling
Subtitle: a history of the Brotherhood of Railroad Signalmen of America
Series: Pamphlets in American history -- L 1872
Publisher: publisher not identified
Published: 1979
Place of publication: Place of publication not identified]
Language: eng
Number of pages: 32
Subjects: Railroads; Employees; Labor unions; Brotherhood of Railroad Signalmen of America
Notes: Cover title.

Includes advertisements.

Microfiche. Sanford, N.C. : Microfilming Corp. of America, 1979. 1 sheet ; 11 x 15 cm. (Pamphlets in American history : Labor ; L 1872)