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).
Requesting a laboratory retest for speedometer D.231 740 from vehicle 18-GIV following a 10,000-mile test.
| Identifier | ExFiles\Box 59\2\ Scan100 | |
| Date | 22th January 1931 | |
| X6051B Hs{Lord Ernest Hives - Chair}/AJL. from EFC. EFC3/AD22.1.31. X.6051B SPEEDOMETER EX 18-GIV. A careful record was made of the performance of speedometer D.{John DeLooze - Company Secretary} 231 740. at various temperatures previous to its going on 18-GIV for the 10,000 mile test, therefore we should be pleased if, at your convenience, we can have this speedometer in the laboratory for retest. If you consider it necessary to have a replacement while the test is being made we will book/another instrument from the inspection. out EFC. | ||