Works photographic negative of LT distribution board, Sheffield
Works photographic negative of 100 kW kiosk, Sheffield
Works photographic negative of substation equipment, Sheffield
Works photographic negative of substation under construction, Sheffield
Works photographic negative of substation under construction, Sheffield
Works photographic negative of substation equipment, Sheffield
Works photographic negative of electrodes, Sheffield
Works photographic negative of dry core cable
Works photographic negative of pylon, Victoria Falls, Zimbabwe
Works photographic negative of traction engine, Sheffield
Works photographic negative of overhead transmission line, Brackton Camp
Works photographic negative of view from above trees, Sheffield
Works photographic negative of 6600 V cable joint, Trafford Park
Works photographic negative of cabling up machine
Works photographic negative of unspecified machine
Works photographic negative of sample board, Trefforest, Pontypridd
Works photographic negative of connectors, Sheffield
Works photographic negative of cutting up machine
Works photographic negative of cutting up machine
Works photographic negative of pulleys, Haunchwood Colliery, Warwickshire
Works photographic negative of paper covering machine
Works photographic negative of lead sleeve box, Calcutta [Kolkata], India
Works photographic negative of pulleys, Haunchwood Colliery, Warwickshire
Works photographic negative of connections to machines, Sheffield
Works photographic negative of LT link boards, Sheffield
Works photographic negative of EHT joint, Calcutta [Kolkata], India
Works photographic negative of transmission line, Bulford Camp, Salisbury Plain
Works photographic negative of overhead line, Bulford Camp, Salisbury Plain
Works photographic negative of vertical bifurcating box, Moira Bath Pit, Ashby de la Zouch
Works photographic negative of overhead line, Bulford Camp, Salisbury Plain
Works photographic negative of EHT joint, Calcutta [Kolkata], India
Works photographic negative of 250 hp motor, Sheffield
Works photographic negative of transmission line, Bulford Camp, Salisbury Plain
Works photographic negative of earth connections, Hulton Colliery
Works photographic negative of engine cylinder, Moira Bath Pit, Ashby de la Zouch
Works photographic negative of cable drum and manhole, Sheffield
Works photographic negative of suspended cables, Hulton Colliery
Works photographic negative of boilers, Moira Bath Pit, Ashby de la Zouch
Works photographic negative of compressor motor, Hulton Colliery
Works photographic negative of pit head building, Chamber Colliery, Oldham
Works photographic negative of Founder's name, Smith & Co. Chesterfield
Works photographic negative of head of pit shaft, Chamber Colliery, Oldham
Works photographic negative of generators, Hulton Colliery
Works photographic negative of anchor post with pulley, Chamber Colliery, Oldham
Works photographic negative of traction engines, Chamber Colliery, Oldham
Works photographic negative of Savery and Newcomen engine illustration
Works photographic negative of inverted pole box
Works photographic negative of illustration of unidentified pattern in brickwork
