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.  A decade on and under several pressures, A1 Services became a subsidiary of Stagecoach and the name disappeared.

Our brightly decorated brilliant blue, cream and red double decker bus features the graphics of A1 Service and is registered NTF 9.  Its destination blind indicates it going to Ardrossan via Dalry Road & Beggs Terr.  The company address in Parkhouse Road, Ardrossan is printed behind the nearside front wheel, while the wheels and the interior of the bus repeat the red on the main body of the bus