BR 21 Ton Rebodied Hopper (Vac. Brake)
In the 1970's BR started to put new bodies on some of the older hopper wagons built in the 1940's and 1950's. Although basicaly the same design as previous some differences in body supports were made to simplify production. Some ran with vacuum brakes, while some were never given the continous brake. Examples lasted into the 1990's.