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).
Fitting of a balanced crankshaft to the 20-EX model.
| Identifier | ExFiles\Box 65a\2\ scan0254 | |
| Date | 25th May 1921 guessed | |
| contd :- -2- BALANCED CRANKSHAFT. This can be fitted to 20-EX as soon as the car comes into the Shop for its cross member and engine feet alteration. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||