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).
Specification for production Phantom III oil coolers.
| Identifier | ExFiles\Box 94\3\ scan0113 | |
| Date | 21th November 1936 | |
| 340 Hs.{Lord Ernest Hives - Chair} from Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}9/R.21.11.36. Replying to Hs.{Lord Ernest Hives - Chair}1/KW.20.11.36., herewith is a specification for production P.III oil coolers. Rm.{William Robotham - Chief Engineer} | ||