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).
Experimental record sheet for a 10,000-mile test on an A.T. Speedometer.
| Identifier | ExFiles\Box 59\2\ Scan097 | |
| Date | 4th February 1930 | |
| X4308 + 6051 X6051a 10000 mile test ELECTRICAL EXPERIMENTAL RECORD SHEETS. Date. - 4 - 2 - 30 Item: - A677 N800 14/52 A.T. Speedometer Table Data: Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered | Total miles. 17-1-30 | Lab | 1-2-30 | Tested see report 3-2-30 | 21400 | 22144 | | 2-2-30 | 23EX | 1-7-30 | | 22144 | 35157 | 13013 | 13013 1-7-30 | Lab | 5-7-30 | Tested see report 9-7-30. | 35157 | 35481 | 224 | 13237 5-7-30 | 23EX | 15-8-30 | | 35481 | 38204 | 2823 | 16060 15-8-30 | 23EX | 3-10-30 | | 38204 | 40850 | 2646 | 18706 3-10-30 | " | 10-10-30 | | 40850 | 41246 | 396 | 19102 10-10-30 | Lab Test | | No further record kept G.J. 20-4-31 | 41246 | | | | ||