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 order of a 58 m.m. Mark VI Marston Matrix for a 6-B-IV model.
| Identifier | ExFiles\Box 83\1\ scan0103 | |
| Date | 31th January 1936 | |
| RHC.{R. H. Coverley - Production Engineer} x200a 4 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/KW.31.1.36. 58 m.m. Mark VI Marston Matrix for 6-B-IV. This matrix has been ordered because we think that the big bore engine may be inadequately cooled with the narrow matrix at present fitted to the car, and we wish to have it as an alternative for test. It requires a new bottom tank. Will you please complete it as soon as possible. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||