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 record sheet for a P&R 2-6 RR 11-4 battery.
| Identifier | ExFiles\Box 54\1\ Scan160 | |
| Date | 21th September 1929 | |
| X4617P. ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No:- 4617P P&R 2-6 RR 11-4 Battey (191) on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles. 10-2-28 | Lab | 29-2-28 | Received charged 106 lbs weight. | | | | 29-2-28 | 12EX | 3-5-28 | | O | 3777 | 3777 | 3777 3-5-28 | " | 16-6-28 | | 3777 | 6222 | 2445 | 6222 16-6-28 | " | 24-7-28 | | 6222 | 8220 | 1998 | 8220 24-7-28 | " | 25-8-28 | | 8220 | 10226 | 2006 | 10,226 25-8-28 | Lab. | 11-9-28 | | 10226 | 10722 | 496 | 10,722 3-10-28 | 12EX | 16-11-28 | | 382 | 2560 | 2178 | 12,900 16-11-28 | " | 5-1-29 | | 2560 | 4378 | 1818 | 14,718 5-1-29 | " | 8-2-29 | | 4378 | 5954 | 1576 | 16,294 8-2-29 | " | 25-3-29 | | 5954 | 8238 | 2284 | 18,578 25-3-29 | " | 22-4-29 | | 8238 | 8936 | 698 | 19,276 22-4-29 | " | 1-6-29 | | 8936 | 10,785 | 1849 | 21,125 1-6-29 | " | 28-6-29 | | 10,785 | 11,735 | 950 | 22,075 28-6-29 | " | 12-9-29 | | 11,735 | 14,416 | 2681 | 24,756 12-9-29 | " | 14-9-29 | | 14,416 | 17,533 | 3117 | 27,873 14-9-29 | " | 21-9-29 | Battery gone with car to Repair Dept 2.9. | 17,533 | 18,258 | 725 | 28,598 | ||