This oil tank wagon consisted of a tanker mounted on a four-wheel chassis. The tanker had a manhole with hatch on the top, bracing in two places around the tanker, mounted on an underframe.
The tank was either green with BP stencilled in red or silver with BP stencilled in green. The BP was for British Petroleum oil and gas company.
The tanker was slightly larger in the early production, being smaller size later on.
The chassis was bronze coloured.
Additional detail included a moulded hand brake on the chassis.