The Great Northern Railway (GNR) Class N2 is an 0-6-2T side tank steam locomotive designed by Nigel Gresley and introduced in 1920.

Some locomotives were fitted with condensing apparatus for working on the Metropolitan Railway Widened Lines between King's Cross and Moorgate.

They also hauled some empty coaching stock trains between King's Cross and Ferme Park carriage sidings.

They were also a common sight in and around Glasgow and Edinburgh operating suburban services, mainly on what is today known as the North Clyde Line.

The loco's most recent overhaul was completed in 2009, with the engine being given its GNR Apple Green livery at the same time, and is usually based at the NNR when not visiting other railways.

Announced in the October 1938 issue of the Meccano Magazine, it retailed at 12s 6d with a clockwork mechanism, or 17s 6d for the three-rail electric version.

All three were listed in the final Mainline catalogue of 1984, by which time the retail price had increased to £33.37 for the LNER lined black version.

[7][8] Hornby currently owns the toolings for the N2, and released a model of engine 69563 as part of the R2981 London Olympics 1948 set including two British Railways (ex-LNER) 60-foot (18 m) teak coaches, 3rd class composite 1435 and 3rd Brake 24387.