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).
Request to order two 4-volt, 4-watt double contact S.B.C. lamp bulbs for ignition tests.
| Identifier | ExFiles\Box 63\1\ scan0163 | |
| Date | 3rd November 1925 | |
| X3035 To Wd.{Mr Wood/Mr Whitehead} from EFC. EFC2/T3.11.25. Will you kindly order up for use in this Dept. in connection with ignition tests :- 2 4-volt 4 Watt double contact S.B.C. lamp bulbs. Reed EFC. | ||