The 'Knotty' was one of the most beloved of Britain's pre-grouping companies. Centred on Stoke-on-Trent, at one time it carried two-thirds of the country's pottery, as well as partaking in the lucrative coal and iron trades. It began to build its own carriages and locomotives at an early date and operated an extensive canal system, as well as narrow gauge lines including the Leek & Manifold. Never a wealthy company, it withstood aggressive take-over...