. "The NER Class R1 (LNER Class D21) was a class of 4-4-0 steam locomotives of the North Eastern Railway. The class was designed by Wilson Worsdell and built from 1908 to 1909."@en . "NER Class R1"@en . . "LNER Class D21"@en . "1909Z"^^ . "10"^^ . "1908Z"^^ .