Class N1 - 4591 - Ivatt GNR 0-6-2T - built 04/12 by Doncaster Works as GNR No.1591 - 12/25 to LNER No.4591, 10/46 to LNER No.9471, 09/50 to BR No.69471 - 01/56 withdrawn from 37C Bradford Hammerton Street - seen here at Hornsey, 05/35.