LJN09. An excellent model of a Derby Lightweight 2- Car DMU in BR Green. This is by Bachmann Brass/Sancheng, very well painted and fitted out and lightly weathered. The Power Car is E79007, The Trailer Car is E79507. Fitted with Canon motor in the power car, and driver and passengers also fitted. The units are supplied in their original boxes, and the models are lightly used. The prototypes were amongst the earliest DMU's introduced, in 1954. E79007 was a Driving Motor Brake Second.E79507 was a Driving Motor Composite with Lavatory. £675.