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).
Mileage to date for Elliott ammeters, excluding a specific 10,000-mile test.
| Identifier | ExFiles\Box 168\5\ img062 | |
| Date | 8th March 1926 | |
| X4622 EFC/T8.3.26. X.4622 - ELLIOTT AMMETER MILEAGE TO DATE (Other than 10,000 miles test on 8-EX) 10-EX. 140098. 3733 miles. 16-GIII. 141000. 2303 " 11-GIII. 141001 397 " EFC/G.J. | ||