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).
Letter from Joseph Lucas Ltd. regarding a wiring diagram for lamps.
| Identifier | ExFiles\Box 61a\2\ scan0006 | |
| Date | 4th January 1929 | |
| P/126 JOSEPH LUCAS LTD., PAGE DATE To Messrs. Rolls Royce Ltd., D E R B Y. 2 4th January, 1929. To assist you in the wiring, we are including with the lamps, a wiring diagram which actually refers to the double bulb type. The circuit however, is the same. Yours faithfully, JOSEPH LUCAS LIMITED, [Signature] | ||