The International Exhibition: locomotive tank-engine, by Manning, Wardle and Co., of Leeds, 1862. Engine designed ...for the mineral traffic at ironworks, collieries, &c., and for contractors use in the construction of public works...The tank on the boiler contains 250 gals, of water, the boiler being fed by Giffards injectors. The engine is so arranged as to combine the greatest possible tractive power with the least weight and smallest consumption of fuel, so that although the weight, in working trim, is only about 10? tons, the engine will move a gross load of upwards of 200 tons on the level. Engines of this class can be constructed to work on any gauge of railway from 3ft. upwards, can be turned round on an ordinary turntable, and will follow a ballast-waggon round any curve; their light weight enabling them to be used on contractors metals which would not carry a heavy engine. The engine at the exhibition was used for several weeks by her Majestys commissioners to draw in the other locomotives and heavy machinery, and while thus engaged gained the good opinion of all the officials. It has been awarded a prize medal "for excellence of workmanship and adaptation for the purpose for which it was constructed". From "Illustrated London News", 1862.