RA 8180 BR-WR SEALED RELEASE UNIT. ship-zone-k the first section on the

the first section on the Midland Railway Barnt Green to Ashcurch line

and T H & S  is cast into the back in raised letters

quite scarce

A BR-WR office copy signal box diagram of FILTON WEST JUNCTION which is in the Bristol area and controls the lines to Avonmouth from Filton Junction and Stoke Gifford West boxes

RA 8180 BR-WR SEALED RELEASE UNIT. ship-zone-k the first section on theThis BR WR Alloy sealed release unit used by the signalman to override a track circuit during a failure which was preventing the points from being moved, he would break the glass which allowed the button to be depressed to allow the lock to operate. This unit is complete with glass, new ticket and retaining spring clip.