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).
Hand-drawn graph plotting vehicle performance data such as temperature and petrol consumption.
| Identifier | ExFiles\Box 5a\2\ 02-page411 | |
| Date | 21th August 1934 | |
| Readings Ev{Ivan Evernden - coachwork} Av. Speed 41-2 Date 21/8/34 20MPH 10MPH 100°c 90°c 80°c 70°c 60°c 50°c 40°c 30°c 20°c 10°c PETROL CON. WATER TEMP OIL TEMP AIR TEMP DRIVERS Rose Walsh Miles 196. | ||