Deliveries of Duple bodywork on full-sized chassis (such as the AEC Regal) began in May 1946, and were known as the A-type, although its curved lines had their origin in the prewar period, so it was not strictly a new design. Before long the order book was filled for several years ahead. Postwar rebodying became common practice as new chassis were initially hard to obtain and Duple built many A-type bodies on different chassis that helped to make it, with its distinctive side 'flash', a familiar sight in postwar Britain. Alternative styles were available, all with alphabetic codes, such as the B-type and C-types, which differed in detail only and were regarded as 'dual-purpose' bodies, whilst the D-type was Duple's own design of bus body.