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).
Letter sending an instruction book for a 4¼ litre Bentley car and advising on oil type.
| Identifier | ExFiles\Box 90\3\ scan0151 | |
| Date | 24th April 1941 | |
| 261(d) Rm.{William Robotham - Chief Engineer}S/M.{Mr Moon / Mr Moore} 24.4.41. J.Thompson,Esq., Officer's Mess, Cranwell Aerodrome. LINCOLNSHIRE. Customers cars Dear Jack, I am sending you herewith an Instruction Book for your 4¼ litre Bentley car. This will be useful to your local garage if ever they have to do any work on it and they should definitely work to the information contained therein. Do not use any thinner oil than Castrol XL. Yours | ||