<page_title> List of British Railways shed codes </page_title> <section_title> North Eastern Region </section_title> <table> <cell> 51A <col_header> Code </col_header> </cell> <cell> Darlington Sub-shed Middleton-in-Teesdale (to 1957) <col_header> Shed </col_header> </cell> <cell> Became DN <col_header> Comments </col_header> </cell> </table>
The Darlington TMD code was 51A later on DN.