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).
Rear axle failure on an Isotta Fraschini car during final road tests.
| Identifier | ExFiles\Box 22\2\ Scan033 | |
| Date | 13th November 1923 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. RG.{Mr Rowledge} c. to BY.{R.W. Bailey - Chief Engineer} Da.{Bernard Day - Chassis Design} X4609 Hs{Lord Ernest Hives - Chair}5/LG13.11.23. ISOTTA FRASCHINI CAR. X.4609. On the final road tests of this car, the rear axle failed. We found on examination that all the teeth were stripped off the Pinion. As soon as the gears are replaced, the car will be sold. Hs.{Lord Ernest Hives - Chair} | ||