From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Order for 3 vacuum control units from the Lucas Co.
| Identifier | ExFiles\Box 127\4\ scan0055 | |
| Date | 25th June 1937 | |
| To Rm{William Robotham - Chief Engineer}/Wst. 1097 Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe}1/JH.25.6.37. Will you please order from the Lucas Co. 3 vacuum control units complete as fitted to 25 H.P. Vauxhall. The specification of the vacuum unit to be identical with the Delco-Remy model on 28 H.P. Chevrolet. Rm{William Robotham - Chief Engineer}/G.Ratcliffe. | ||