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 produce a new set of .2 longer valves for the 25 HP 'Japan' unit.
| Identifier | ExFiles\Box 102\5\ scan0067 | |
| Date | 29th June 1931 | |
| 75090 To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}8/MJ.29.6.31. VALVES FOR HIGH LIFT ROCKERS 25 HP. Will you please make another set of .2 longer valves for the 25 HP. 'Japan' unit, as instructed in BY/C56/EH.14.5.31. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||