LCDR Dawn and Bluebell classes

The LCDR Dawn and Bluebell classes were two classes of six 2-4-0 steam locomotives designed by William Martley for the London, Chatham and Dover Railway to haul passenger trains. Martley cancelled five Echo class engines provisionally ordered from Sharp, Stewart and Company and instead placed an order with Sharp Stewart in February 1861 for the new Dawn design, which was delivered between October and November 1862. A further six, with a boiler three inches smaller in diameter but six inches longer and other changes, were ordered from Sharp Stewart in October 1862 as the Bluebell class and delivered from April to June 1863. They became the SECR numbers 491 to 502 in 1899 and were withdrawn between October 1903 and May 1908.