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).
Two special accelerator pump pistons in brass for a Phantom III.
| Identifier | ExFiles\Box 118\2\ scan0369 | |
| Date | 23th February 1937 | |
| 1023. r G/Cam from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}5/M.23.2.37. In reference to your memo, reference G/Cam/AEW13/DW.22.2.37, the only 2 carburetter pistons we have received from Zeniths as far as can be traced were 2 special accelerator pumppistons in brass for Ph.III, but whether they are to Drawing Ex 764 we cannot say as this will be their own drawing to suit our request. If these are the ones to which you refer, than an official order was passed in accordance with our memo Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}20/KW.5.10.36. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||