RA 8451 ALLOY SINGLE LINE KEY" COLNBROOK-WEST DRAYTON WEST"

An early pattern Great Western Railway "parallel" shank single line key COLNBROOK-WEST DRAYTON WEST, this box was originally name  WEST DRAYTON & YIEWSLEY WEST SIGNAL BOX . Colnbrook signal box was a very busy location supervising a level crossing. This key is in very good ex railway service condition although the red had been repainted.  This is an "A" pattern configuration.