Identification & quantity of components on fret:
1. 5ft home (5) and distant (1) arms
2. Spectacle plates for 1 and 7 (8)
3. Backlight blinders (8)
4. Balance lever brackets (8)
5. Balance levers (6)
6. Rodding guides (6)
7. 3ft home arm (1)
8. Goods/slow line rings (2)
B. Calling on arms (2)
S04 7mm scale London & North Western Railway lower quadrant signal arm fret
This fret represents the standard corrugated steel arms introduced in 1883. Many of these signals remained in use well into BR days, latterly with the arms replaced by the upper quadrant (S012, S012/1) type.
The actual size of the fret is 151½ x 97½mm; it is etched in 0.015" brass.