Peter Kerslake says "A3 60039 Sandwich heading along the East Coast main line with an Up Express. The locomotive was one of the third and final series of nine of the class built as new A3s at Doncaster with the first eight completed in 1934 and the last in January 1935.
In 1948 British Railways inherited no fewer than 78 A3s from the L.N.E.R., 50 of which were rebuilt A1s whilst 27 had been built as A3s. Just one, 60068 Sir Visto, was rebuilt by its new owners in 1949 from its original A1 classification, its earlier rebuilding had been delayed by the war years."