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).
Note regarding wiring drawings in America and the non-use of Lucas Dynamos.
| Identifier | ExFiles\Box 18\6\ Scan174 | |
| Date | 31th August 1920 guessed | |
| (2) WIRING DRAWINGS AT PRESENT IN AMERICA ALL IN ORDER SINCE LUCAS DYNAMO MUST NOT BE USED. ROLLS ROYCE. | ||