Dockyard Bch Home signal. The signal diagram Keyham Sem Repeat 02 shows the signal numbers. Reading left to right Gds Arm 23, Gds Arm 57 , Back Arm 24. Arm 57 is for the Dn Main and has a Gds Arm 57R which repeats for arm 57 at the junction.
Keyham inner home and Dockyard Jct signal. Up Main to Plymouth is on the left. Dn main to St Budeaux is the middle line. Dockyard Siding the right line.
I was only looking at a photo of this loco in Intercity livery carrying the St Blazey Lizard badge emblem on the 'Silver Bullet' train in 1991in Cornish China Clay Trains in colour by Maurice Dart. The 37's certainly got around and had a few paint jobs in their careers. Nice nameplate. Regards,