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).
Confirming the test schedule for a Bentley with Marles Steering and larger wheels.
| Identifier | ExFiles\Box 146\1\ scan0152 | |
| Date | 29th December 1937 | |
| 1245 W/P. Sr. from Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}18/R.29.12.37. Referring to Sr28/Dn.24.12.37., we expect the Bentley with Marles Steering and larger type road wheels to go on test the 3rd week in March. Rm.{William Robotham - Chief Engineer} | ||