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).
The intensive testing of modified, less costly pump units for Phantom III jacks.
| Identifier | ExFiles\Box 139\1\ scan0390 | |
| Date | 19th April 1937 | |
| 1186 S/W. B/Lid.{A. J. Lidsey} e.{Mr Elliott - Chief Engineer} " Hs{Lord Ernest Hives - Chair} C. " Sg.{Arthur F. Sidgreaves - MD} C. " Da.{Bernard Day - Chassis Design} C. " BX. C. " Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} C. " RHC{R. H. Coverley - Production Engineer} C. " H/Ev{Ivan Evernden - coachwork} C. " RG.{Mr Rowledge} Cx{Major Len W. Cox - Advertising Manager}2/KW19.4.37. Phantom III Jacks. Reference E/Lid{A. J. Lidsey}5/HP9.4.37 addressed to Sg.{Arthur F. Sidgreaves - MD} with regard to the rams with gland which is less costly to manufacture and modified pump unit, we have now used these regularly since we received them following on your Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}9/R16.12.36 and the cars have been allowed to stand all night on them. They are now used every time the cars are washed and so far they have not given any trouble. We shall continue these intensive tests until you tell us that there is no need to continue them. Cx.{Major Len W. Cox - Advertising Manager} | ||