The TTA tanker is one of the most common types of tanker wagon ever seen on British railways. While far from the first or last such wagon to be used, the standardised nature and relative simplicity of the mechanisms in the tank and chassis led to thousands being built during the 1960s and 70s.
This triple TTA tank wagon pack consists of three Shell-Mex-liveried tank wagons with the running numbers: 501, 502 and 503.
