Bachmann OO 37-205A Bedwas Coke 8 Plank Open Wagon With Coke Rails

Detailed model of a 8 plank open coal wagon fitted with extra coke rails as operated by the Bedwas Coke company.
Coke is coal heated in the absence of air to drive off impurities, the resulting purer carbon coke burns at high temperature and is used in iron and steel making process. The coke is less dense than coal so 'coke rails' were used to increase the volume of a 12 ton coal wagon so a full 12 tons of coke could be carried.