New bus that is powered by coal converted into gas.
Title reads: "Perth".
New gas driven bus demonstrated at Perth, Scotland.
Various shots of ordinary looking bus. Various shots of engine and mechanisms inside bus. The bus is unusual as it is powered by gas produced from coal ("anthracite"). The coal converted into gas inside the bus.
According to narrator this invention is important as all other vehicles are dependant on petrol and crude oil imported from foreign countries, the new bus is fuelled by home produced coal.