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 BR11/1 Battery (147).
| Identifier | ExFiles\Box 54\1\ Scan026 | |
| Date | 12th June 1924 | |
| ELECTRICAL EXPERIMENTAL RECORD SHEETS. P&R BR11/1 Battery (147) X4617P Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles. 16-6-24 | Lab | 7-7-24 | Received charged. 7-7-24 | Routine Tests. | 23-7-24 | 52.8.110.3 12.8 53.0 11-8-24 | M.S. | 1-4-25 1-4-25 | 93NK. | 21-7-25 | 2 cells failed. | 0673 | 9796 | 29,476 | 28,476 8-9-25 | Opened up See Report JB 117 | 8-9-25 12.6.24. | ||