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).
Request for a resumé of the general progress on valve springs.
| Identifier | ExFiles\Box 158\4\ scan0159 | |
| Date | 18th June 1937 | |
| 1360 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}from Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}12/R.18.6.37. I should like a resumé of our general progress on valve springs. Rm.{William Robotham - Chief Engineer} | ||