Lord Nelson was the first of its class (LN class) to be built to a design of Richard Maunsell for the Southern Region . It emerged from Eastleigh works in August 1926 and was designed for pulling the express London to Dover or Southampton boat trains, although later they could be found on other express passenger services. In all 16 were constructed and all were named after famous admirals.

850 was withdrawn in August 1962 and purchased by the National Railway Museum for preservation and use on main-line railtours. It was restored at Carnforth in 1979 and again in 1997 at Eastleigh, in between seeing service on mainline tours. In February 2009 it was sent to the Mid-Hants Railway for use on services there.



