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).
Brief note on the complexity of a B.M.W. Cylinder Head.
| Identifier | ExFiles\Box 134\1\ scan0040 | |
| Date | 17th November 1937 | |
| H29 By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} c. Da.{Bernard Day - Chassis Design} c. Da{Bernard Day - Chassis Design}/Jnr.{Charles L. Jenner} Rm{William Robotham - Chief Engineer}4/R.17.11.37. B.M.W. Cylinder Head. This head is not as simple as it looks. Rm.{William Robotham - Chief Engineer} | ||