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).
Instruction to the Works to use 16/18 volt bulbs on the warning light.
| Identifier | ExFiles\Box 175\4\ img108 | |
| Date | 10th January 1928 | |
| X3875 To EFC. BY/RD2/ML/10.1.28. We instructed the Works to use 16/18 volt bulbs on the warning light about the beginning of November. RECEIVED Hs{Lord Ernest Hives - Chair} JAN 10 1928 BY/RD. | ||