Ivatt GNR D3 4-4-0 No 4316 at Saltersford, just south of Grantham with a train of empty Frodrigham Works iron ore wagons for the High Dyke branch in c1931. Saltersford Signal Box closed on 3rd April 1932, so this has to be before then because its distant signals are still active, as seen in the distance.

Photo: T.G. Hepburn/Rail Archive Stephenson