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).
Cost estimate for special springs for the 20 HP cars.
| Identifier | ExFiles\Box 47\2\ Scan407 | |
| Date | 24th November 1930 | |
| Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X4117 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/AD24.11.30. GLR-50. MR. BERNARD HOPPE Your Sg{Arthur F. Sidgreaves - MD}11/D21.11.30 With reference to the special springs for the 20 HP. cars. The cost of these will be approximately the same as a set of standard springs i.e. £19.3.0. complete with grooving etc. This is naturally a provisional estimate as they might run into some difficulty in making the first one or two odd springs of this type. If a production quantity were ordered they should undoubtedly be cheaper as there is less material in them. We shall get an indication of the percentage saving when the present batch of stiffer springs for the 40/50 have been completed. hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||