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).
Confirming a request to run a dynamometer test on Hi Press oil for a 40/50 gearbox.
| Identifier | ExFiles\Box 145\2\ scan0042 | |
| Date | 1st November 1934 | |
| X1583 To Mx.{John H Maddocks - Chief Proving Officer} Hs{Lord Ernest Hives - Chair}/Gry{Shadwell Grylls}/24/KW.1.11.34. Gearbox Oils. Just to confirm our asking you to run a 40/50 gearbox dynamometer test on Hi Press oil for which purpose we have sent one gallon to Mr. Hare. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||