Barkers began building Coaches in 1710 and supplied the British Royal family with many coaches. After almost 200 years they started to build bodies for cars, famously getting the approval of CS Rolls in 1905. This is typical of many coachbuilders who literally started by building wagons and coaches to be drawn by horses. Early motor manufacturers seemed to concentrate on the engineering of their devices and it was left to coachbuilders to transfer their skills to the horeseless carriage and make it more habitable. Before 1920 most cars were supplied as a chassis only for the customer to have their own body built on separately. However, very soon manufacturers established close ties with nearby coachbuilders, and certain body styles were standardised for the car. The need for mass production economies saw manufacturers turn to standard steel bodywork which they quickly learned how to make for themselves and the market for bespoke coachbuilt bodies declined rapidly in the late 1930s.