The Wig Wag Signal
The Wig Wag SignalA wig wag was an early railroad signal. Its main advantage over flag semaphore was that it used only one flag instead of two. This meant less labor for a signalman and less stress...
Dec 11 , 2023
The Wig Wag SignalA wig wag was an early railroad signal. Its main advantage over flag semaphore was that it used only one flag instead of two. This meant less labor for a signalman and less stress...