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).
Internal request to order twelve specific lamp bulbs for side and tail lamps.
| Identifier | ExFiles\Box 166\4\ img064 | |
| Date | 9th July 1930 | |
| X6089 Roy.{Sir Henry Royce} from EFC. EFC7/AD9.7.30. Will you please order the following lamp bulbs :- 12 12/14 volts 4 watt vacuum, centre contact S.B.C. S.7126. for side and tail lamps. EFC. | ||