Protection of Signal Boxes - Sheffield District

Plans of signal boxes from the Sheffield District showing alterations to withstand attack. File list includes signal boxes at: Attercliffe, Aldam , Barnsley, Beighton, Brightside, Darnall, Dearne, Dore & Totley, Elsecar, Foxlow, Grimesthorpe, Hall Lane, Holmes, Heath, Huddersfield, Killamarsh, Kilnhurst, Langwith, Masborough, Moor Road, Mexborough, Monks Spring, Neepsend, New Oaks, Nunnery Main Line Junction, Parkwood, Quarry Junction, Court House, Rotherwood, Sheffield, Stairfoot, Staveley, Swinton, Tapton, Thrybergh, Tinsley, Treeton, Waleswood, Wath, West Silkenstone, Willey Bridge, Wincobank, Wombwell, Woodburn and Woodhouse.