Rather than construct something for the railroad itself, he decided that an early 1900’s-style semaphore railroad signal would make a great novelty item for the room. The project started with ...

Well you don't need a degree in semaphore to understand what they all mean. Here is our guide to the referee assistant signals. When the whole of the ball crosses the line, it's time for a throw-in.

Semaphore refers to the use of visual signals to pass along information and is most commonly associated with flag signals.