Classic railroad signals
Subtitle: semaphores, searchlights, and towers
By: Brian Solomon
Published: 2015
Language: eng
Number of pages: 160
ISBN-13: 9780760346921
Copyright date: 2015
Subjects: Railroads; Signaling
Notes: "Examines how different railroads developed specific hardware to serve their unique needs, featuring historic and full-color modern photography."

Includes bibliographical references  and index.
Table of contents: title: American signaling basics; title: Towers and interlocking signals; title: Two-position semaphores; title: Upper-quadrant semaphores; title: Color lights; title: Position light signals; title: Grade crossing protection and unusual railroad signals.