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 total mileage of a metal battery box on chassis 6-GII.
| Identifier | ExFiles\Box 74\2\ scan0090 | |
| Date | 8th July 1925 | |
| X4387 EFC. 8.7.25. Total miles run by the metal battery box on 6-GII are 33,279. GJ. | ||