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).
The exchange of large side lamp bulbs for a smaller preferred type.
| Identifier | ExFiles\Box 71\2\ scan0010 | |
| Date | 15th December 1925 | |
| To Wd.{Mr Wood/Mr Whitehead} from EFC. X8500 EFC1/T15.12.25. RE SIDE LAMP BULBS. (CENTRE CONTACT) Herewith two 12-14 volt 12 c.p. side lamp bulbs as samples. These I believe have been obtained from Auto Bulbs Ltd. Earlier on we received bulbs like the small one, but later we have received some of the larger ones. The smaller ones are preferred, because the larger ones will not go in the Lucas spare lamp bulb carrier. We have a stock of 12 of the larger ones and we should be pleased if you would arrange to exchange these, and that in future we should receive those of the smaller bulb type, which has a bulb dia. about 25 mm. and an overall length of about 42 mm. EFC. 12 c.c. side lamp bulbs herewith. also 1 sample small bulb. | ||