The first of a batch of 3 AEC Regents were delivered to Reading Corporation Transport (RCT) in 1933 which was to set the pattern for future motorbus purchases for the next 25 years. The following year saw five more enter service. Three more were taken into stock in 1935 and one of these was 47. These three vehicles were the first batch of metal framed bodies purchased by RCT.
The Regents were the mainstay of the town's motorbus services during the second world war years, coping admirably with the heavy loadings experienced during those difficult years.
In 1950 47 underwent an extensive rebuild in RCT’s own workshops and this took most of the year to achieve. The front end was slightly re-designed and included a larger destination indicator. When it re-entered service in November that year its two sister vehicles bought in 1935 were withdrawn.
47 remained in service until the 29 February 1956 whereupon it passed to Lancashire Motor Traders of Salford. After nearly a year in storage it was eventually purchased for further service by A.G. Lingfield (Chesswood Mushrooms) and donated to the Reading Transport Society in 1963.
Subsequently 47 was repainted back into Reading livery externally and it took part in the 1965 London to Brighton Run. In 1976 it took part in Reading Transport’s 75th Anniversary Parade. It also took part in a special running day for preserved ex-Reading buses in 1991 and 1993.
Over a number of years the interior has been gradually restored including the seats being completely re-upholstered and the engine being rebuilt whilst more recently the cab has been rebuilt. 47 is one of the oldest buses in roadworthy condition in Britain and made the long journey from Reading to Sandtoft to take part in the Reading Trolleybus event over over the 2006 Spring Bank Holiday. It made a return trip to Sandtoft over the Spring Bank Holiday in 2011 to take part in the BTS's 50th anniversary celebrations when all vehicles owned by the BTS were to be seen together for the first time ever. It also attended the Reading Buses Open Day on 3 July 2011.