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).
The telegage for the 20 HP Chassis 'O' Series.
| Identifier | ExFiles\Box 44\4\ Scan014 | |
| Date | 15th March 1929 | |
| To ROY.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} L9038. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG15.3.29. 20 HP. CHASSIS 'O' SERIES TELEGAGE. With reference to ROY{Sir Henry Royce}/MS17/P12.3.29. The gauge for the 20 HP. is K.S.175.P. This consists of a tank unit, triple air line, dashboard unit and air pump, as in the case of the 40/50 HP. We have arranged with Messrs. Claudel Hobson exactly what this KS.175.P. gauge is to be with the exception of the dashboard air pump which is still under consideration. As this, however, can be fitted very simply to the complete car, the week or so which we anticipate will elapse before its form is finally settled, will not be of much consequence. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||