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).
Notification about the alteration of the R.P.M. for the 40/50 HP Chassis speedometer.
| Identifier | ExFiles\Box 50\4\ Scan309 | |
| Date | 18th September 1929 | |
| X4308. EFC. {E. Fowler Clarke - Electrical Engineer} BY {R.W. Bailey - Chief Engineer} /Mtn10/N.18.9.29. Re: 40/50 HP. Chassis - Speedometers. Kindly note the R.P.M. of the 40/50 speedometer has been altered from 800 to 765. BY {R.W. Bailey - Chief Engineer} /Mtn. | ||