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).
Instruction to change over the rear springs on specific cars.
| Identifier | ExFiles\Box 87\4\ scan0160 | |
| Date | 8th June 1937 | |
| HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} R46 Rm{William Robotham - Chief Engineer}/Les.1/AP.8.6.37 4.B.1V. and B.23.AE. Will you please change over the rear springs on the above cars. Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} | ||