History of automatic, electric and electrically controlled fluid pressure signal systems for railroads
By: by William Robinson
Publisher: Crist, Scott & Parshall
Published: 1906
Place of publication: Cooperstown, N.Y
Language: eng
Number of pages: 70
Subjects: Railroads; Signaling; History
Notes: "An announcement of the new Robinson electric railway system, followed by a brief history of automatic railroad signaling in the United States, will be found on the following pages."