Description
This fret represents the corrugated steel type of signal arm introduced by the London & North Western Railway in 1883. They remained in use through the LMS period and into BR days, but all have now been replaced by upper quadrant (SN12/2) arms, often on the original posts, or by colour light signals.
The actual size of the fret is 42 x 27mm; it is etched in 0.008″ brass. For clarity, the photo shows the equivalent 4mm scale fret.
