Duple drawings were also built by Charles H. Roe in Leeds, Mulliners in Birmingham and Scottish Motor Traction in Edinburgh. Total OWB production was 3,398, finishing in late 1945, the majority of the utility bodies were by Duple, a trend that would continue post-war. Post-war OB Bedford restarted the production of the OB again in October 1945, this time at the Bedford Dunstable plant. There were only minor changes to the pre-war design. From the end of the war, until 1951, a total of 12,693 OB's were built. The Vista remained Duple's standard OB body, until production ceased in 1951. It was succeeded by the Bedford SB. Some wartime OWBs were rebuilt to post-war OB standard. Exports The OB was sold in other Commonwealth countries, with Commonwealth Aircraft Corporation bodying many in Australia. Preservation The OB is one of the most popular coaches in preservation. There are known to be 180 still in existence, nearly 70 in roadworthy condition, and 30 are licensed for private hire work. They have regularly appeared in period television programmes including Foyle's War and Miss Marple. To celebrate its 70th anniversary, on 30 August 2009, a gathering was held at the Vauxhall Heritage Centre in Luton with OBs on display, before making a road run to Bletchley Park. To celebrate the 75th anniversary, a gathering was held at Luton on 16/17 August 2014, with a run to the Millbrook Proving Ground. Several OBs in Australia and New Zealand have also been preserved. References External links Bedford OB Society OB Vehicles introduced in 1939