FR Signals
The old FR Co. initially adopted an idiosyncratic system of signalling when passenger trains were introduced. Each intermediate passenger station had a centrally located, double-armed, semaphore signal that served as both Stop and Starter signal. The two arms served Up or Down tains according to the side of the post.
A replica double arm signal dominates Tan-y-Bwlch Station as trains pass on 15th October 2005 (Picture: Martin Ellis)
At Portmadoc and Duffws single arm semaphores sufficed. Warning signals, outside station limits, took the form of rotating disc signals.
The system was not quite so simple as semaphore point indicators were also provided.
After the 18xx resignalling of the line between Glanypwll and Duffws, by McKenzie & Holland, more conventional semaphore signals were used on this stretch until the downgrading following the 1923 Light Railway Order.
(Needs development - ACG)

