Long cast iron pole, part of signal wire strength testing apparatus, Great Western Railway, ex Reading Signal Works, by J. Slee and Co, Earlestown, Lancashire, GWR machinery number SD L1. Cast iron pole, part of wire strength tester
Signal wire strength testing apparatus, Great Western Railway, ex Reading Signal Works, by J. Slee and Co, Earlestown, Lancashire, GWR machinery number SD L1. Signal wire strength testing apparatus
