S7/12: Westinghouse Upper Quadrant Stop Signal Arm

£2.50 (Price excluding VAT £2.08)

Etched brass fret.

Manufacturer: MSE
Railway Company: BR, LMS, LNER, NR, Railtrack, SR
Scale: 7mm - 0 gauge, S7 etc.


The LMS, LNER and SR introduced flanged upper quadrant signal arms around 1936. They were used for all new installations (on tubular steel posts and dolls, or rail-built posts and lattice dolls on the SR), and to replace lower quadrant arms on signals inherited from the relevant pre-Group companies. BR adopted the design, and new semaphore signals are still being installed today, where replacement by colour lights is inappropriate.

Download instruction sheet

Additional Information

Weight 8 g