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).
Note regarding clutch plates fitted with Thermoid for Phantom III, 125/30 and Bentley models.
| Identifier | ExFiles\Box 85\2\ scan0365 | |
| Date | 21th October 1938 | |
| 212. Hd.{Mr Hayward/Mr Huddy} Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler}1/JH. 21-10.38 Re Clutch Plates fitted with Thermoid. P.III 125/30 + Bentley file 1110. | ||