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 an AT Speedometer.
| Identifier | ExFiles\Box 50\4\ Scan228 | |
| Date | 21th August 1928 | |
| X4308 ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No-4308 AT Speedometer to B.247. D730. 15/32 Date on. Location. Date off. REMARKS. Miles reading Start. Miles reading Finish. Miles covered. Total Miles. 8-6-28 Labs. 12-6-28 see report EFC. {E. Fowler Clarke - Electrical Engineer} 1/T.12628 12-6-28 Makers 21.8.28 according to makers statement this was returned on 21.8.28, but as we have not seen this instrument, we are keeping no further record. | ||