Jon R. Roma:
Compensators and pipeline entering tower
Jon R. Roma:
Viaduct Jct. electric interlocking machine
Jon R. Roma:
Compensators and pipeline
Jon R. Roma:
Compensators and pipeline entering tower
Jon R. Roma:
View of interlocking from Viaduct Jct. Tower
Jon R. Roma:
View of interlocking from Viaduct Jct. Tower
Jon R. Roma:
Viaduct Jct. levers
Jon R. Roma:
Electric interlocking machine at Viaduct Jct.
Jon R. Roma:
Mechanical and electric interlocking machines
Jon R. Roma:
Viaduct Jct. Tower
Jon R. Roma:
Compensator and pipeline at Viaduct Jct.
Jon R. Roma:
Compensators and pipeline as viewed from Viaduct Jct. Tower
Jon R. Roma:
Viaduct Jct. operator/leverman
Jon R. Roma:
Compensators and pipeline as viewed from Viaduct Jct. Tower
Jon R. Roma:
Pipeline and track at Viaduct Jct.
Jon R. Roma:
Pipeline at Viaduct Jct.
Jon R. Roma:
Pipeline and cranks at Viaduct Jct.
Jon R. Roma:
Pipeline at Viaduct Jct.
Jon R. Roma:
Cranks at Viaduct Jct.
Jon R. Roma:
Compensator at Viaduct Jct.
Jon R. Roma:
Compensator and pipeline at Viaduct Jct.
Jon R. Roma:
Pipeline and tower at Viaduct Jct.
Jon R. Roma:
Pipeline and compensators at Viaduct Jct.
Jon R. Roma:
Pipeline, compensators, and track at Viaduct Jct.
Jon R. Roma:
Pipeline and carriers at Viaduct Jct.
Jon R. Roma:
Pipelines and CPL signal at Viaduct Jct.
Jon R. Roma:
CPL signal at Viaduct Jct.
Jon R. Roma:
Facing point lock at Viaduct Jct.
Jon R. Roma:
Circuit controller and facing point lock at Viaduct Jct.
Jon R. Roma:
Circuit controller and facing point lock at Viaduct Jct.
