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).
Request to manufacture one pair of Bentley III Servo cams with a modified cam angle.
| Identifier | ExFiles\Box 99\3\ scan0188 | |
| Date | 12th November 1938 | |
| 441 To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}15/JH.12.11.38. Bentley III Servo. Will you please make one pair Servo cams to GB.4232 and GB.3709 with 30° cam angle instead of 35° as shown on the drawings. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems} | ||