The Modern Commercial Vehicle [32p. booklet] / Shell-Mex and B.P. Ltd. ca.1933. [Contains 7 full-page, coloured illustrations of chassis and engines, with layered, lift-up flaps depicting different parts. Includes also illustrations of steering and gear boxes, rear axle, hub and brake assembly, and braking systems. Over 1250 parts are indicated, and itemised in an alphabetical index]