20/27
The signaling system of the Broadway and Seventh Avenue Railroad, New York City. Registering instrument and emergency wagon. Indicators and alarms in engine room of power house.
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Saturday 5 December 2009
- Posted on
- Saturday 5 December 2009
- Visits
- 1484