1903 - 1907
Based in the small market town of Saxilby, Richardson offered three cars, with 6 1/2hp single, 12/14hp twin and 18/20hp 4-cylinder engines. The two smaller engines were Asters. The 6 1/2hp had a 3-speed gearbox, the others 4-speeds with direct drive on top, and all had shaft drive. In 1907 J.R. Richardson was the manager of the Mass factory at Courbevoie, as well as selling Masses on the British market. It is possible that some, if not all Richardsons were in fact Masses. Certainly the smallest Richardson of 1905 had the same Aster engine as the equivalent Mass.
Source: Nick Georgano / The Beaulieu Encyclopaedia of the Automobile