Mark Vogel:
Amtrak at Brighton Park- Chicago Illinois
Mark Vogel:
Semaphore pot signal in Chicago Illinois
Mark Vogel:
Amtrak at Brighton Park
Mark Vogel:
Semaphore Signals at Brighton Park Chicago Illinois
Mark Vogel:
Semaphore signal in Indianapolis IN PIC 6
Mark Vogel:
Louisville and Indiana passing semaphore signal in Indianapolis IN PIC 3
Mark Vogel:
Louisville and Indiana passing semaphore signal in Indianapolis IN PIC 2
Mark Vogel:
Semaphore signal in Indianapolis IN PIC 1
Mark Vogel:
Brighton Park Semaphore signals and shanty Chicago Illinois
Mark Vogel:
A sentinal of safety for years - The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
Mark Vogel:
The twilight of Monon Semaphore Signals
