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).
Short memo regarding the conversion of a gearbox to a three-speed and the estimated time for testing.
| Identifier | ExFiles\Box 107\1\ scan0372 | |
| Date | 23th May 1936 | |
| X500 To Sg.{Arthur F. Sidgreaves - MD} from Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/KW.23.5.36. To convert your box into a three-speed and make the necessary tests to ensure it is O.K. will take about a week. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||