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).
Confirmation of fitting 16/18 volt, 2.4 watt warning lamp bulbs to cars 8-EX and 12-EX.
| Identifier | ExFiles\Box 175\4\ img079 | |
| Date | 27th August 1927 | |
| EFC. X3875 27.8.27. The two 16/18 volt 2.4 watt electric bulbs for warning lamps have been fitted to cars 8-EX and 12-EX. We are satisfied that these bulbs give sufficient light to effectively warn the driver of the engine temperature. A.J.Lidsey. | ||