Although a relatively small engine, the photographer's below track standpoint still manages to make it look impressive. A saddle tank means that the water tank went over the top as well as along the sides of the boiler to maximise heat capture from it, but had the disadvantage of reducing visibility from the cab. These were built by Sharp Stewart between 1897 and 1909. GNR became part of LNER in the 1923 'grouping'. The engine shown, J52 No. 68846 (GNR No. 1247), has been preserved in the National Collection.