Title
The instrument panel for pneumatic signalling system, Pittsburgh Yards, Pennsylvania Railroad
Caption
Illustration depicting the instrument panel for pneumatic signalling system, Pittsburgh Yards, Pennsylvania Railroad. All movements were displayed electrically on the model of the track above the keyboard. Dated 19th century
Date
19th century
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP23A18_336
License type
Rights managed
Available size
60,0Mb (4,8Mb) / 18,9in x 12,4in / 5660 x 3705 (300dpi)