Under the Whyte notation for the classification of steam locomotives, 0-2-4 represents the wheel arrangement of no leading wheels, two powered driving wheels on one axle, and four trailing wheels on two axles.
This is a most unusual wheel arrangement, with the only known examples being three locomotives supplied to the 4ft 6in Dundee and Newtyle Railway by J and C Carmichael of Dundee in 1833. These were still in operation in 1847, but may have been scrapped in 1849 when the line was converted to the standard gauge.
- Baxter, Bertram (1977). Baxter, David, ed. British Locomotive Catalogue 1825–1923, Volume 1: General Summary and Index of Locomotive-Owning Companies. Hartington, Derbyshire: Moorland Publishing Company. ISBN 0-903485-50-8.
- Baxter, Bertram (1984). Baxter, David, ed. British Locomotive Catalogue 1825–1923, Volume 4: Scottish and remaining English Companies in the LMS Group. Ashbourne, Derbyshire: Moorland Publishing Company.