Bolt-hole gauge, steel gauge for rail bolt-hole-centre "85R J.H.P." Dimensions 88x81mm Bolt-hole gauge
Rail bolt hole gauge, standard, for North Eastern Railway BS 95lb bull-head rail, by Cargo Fleet Iron Co. Rail bolt hole gauge, North Eastern Railway
Rail bolt hole gauge, standard, for North Eastern Railway 90lb rail, by Cargo Fleet Iron Co., 1909. Rail bolt hole gauge, North Eastern Railway
