No. 1257 was built at the GNR's Doncaster Works and entered traffic in December 1901. Under the LNER it was reclassified as a J52 and renumbered to 4257 and, under its 1946 renumbering scheme, the 0-6-0ST became No. 8856. This number was prefixed with '6' under BR in 1948 and the locomotive was withdrawn in October 1951, achieving almost 50 years of service.The model is presented in original Great Northern Railway apple green with black and white lining and red-shaded gold lettering and numerals. It also has the earlier-style safety valve cowling.