On nationalisation, the newly formed BR inherited a vast collection of rolling stock including wagons and hoppers designed to carry coal. As the national rebuild gained full force after the devastation of World War II, the demand for coal soared and BR decided to produce a standard coal hopper to help improve efficiency. The variant finally chosen was based on a 1930s LNER design and was of an all steel construction. Over 23,000 of these were built between 1949 and 1958 and continued in service until the early 1980s. Due to the heavy wear and tear these hoppers endured, many were modified and rebuilt.
The Dapol model is typical of the later modified design of welded 21t hopper and features:
• Highly detailed body, finely moulded
• Complete with load
• Profiled wheels
• NEM pockets with self-centring couplings