1:76. Leyland produced the PD2/12 between 1927 and 1969 continuously except for a three year gap during World War II. It operated nationally, including Scotland and for its latest Oxford outing, it appears as used by the Ayrshire Bus Owners, an independent co-operative bus company, which traded under the name of A1 Services Ltd based in Ardrossan. The company operated local buses throughout the area as well as the trunk route between Ardrossan and Kilmarnock. It also provided an express coach service between Ardrossan and Glasgow during the 1980s.