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 for fitting 1650 lbs rear springs and modifying the buffer depth for car 12-EX.
| Identifier | ExFiles\Box 67a\2\ scan0065 | |
| Date | 12th December 1927 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X8410 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG2.12.27. 12-EX REAR SPRINGS. Will you please fit 2 1650 lbs. springs to this car and at the same time reduce the depth of the buffer to 1/4" less than standard. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||