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).
Modification note for the 20/25 HP chassis, specifying the clutch has been fitted with Graphite Bronze Liners.
| Identifier | ExFiles\Box 107\3\ scan0120 | |
| Date | 4th February 1938 | |
| file 561 N/W Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler} Br/M2/H.4.2.38. re 20/25 H.P. Chassis - Modifications. The clutch on the following chassis have been modified withGraphite Bronze Liners. GHA-29 Br/M.{Mr Moon / Mr Moore} g | ||