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).
Electrical experimental and road test log sheet tracking mileage for a P4RBDHIN1L battery.
| Identifier | ExFiles\Box 168b\3\ img216 | |
| Date | 1st July 1929 | |
| ELECTRICAL EXPERIMENTAL & ROAD SHEETS. XN. 7535P Date on | Location | Date off | REMARKS. | P4RBDHIN1L Battery (205) F79640 --- | --- | --- | --- | --- Miles reading Start. | Miles reading Finish. | Miles covered. | Total miles. 12-12-28 | Received | 7-1-29 | Guarantee no LY/S/705D | | | | | Charged | | | | | | | 7-1-29 | 27EX | 15-4-29 | | 0 | 2820 | 2820 | 2820 14-5-29 | 6FCS. | 1-7-29 | No further record Dept | 9J | | | | ||