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).
Order for 8 springs with specific dimensions and material.
| Identifier | ExFiles\Box 65\4\ scan0260 | |
| Date | 1st October 1928 | |
| x8020 To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rml/LG1.10.28. Will you please order for us :- 8 springs - Wire dia. .232 (4 S.W.G.) 4 1/2 working coils and a coil ground flat at each end. Free length 1.570 Salters special high carbon steel. This is spring F.73372 with two extra working coils. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||