4S-027-005S OO Gauge D Class SECR Grey, scraped beading 726 DCC Sound Fitted51 D Class 4 4 0 locomotives were built between February 1901 and March 1907 during the Wainwright period by the South Eastern & Chatham Railway. From delivery these locomotives were used on the prime express trains to the Kent Coast and Hastings including those carrying boat train traffic for the Continent via the Cinque Ports. During the First World War there was a considerable increase in troop and ambulance train traffic between London and the