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).
Recommending Le Carbon brushes over Morganite brushes for dynamos.
| Identifier | ExFiles\Box 50\5\ Scan123 | |
| Date | 12th August 1922 | |
| X.4333 To EFC. {E. Fowler Clarke - Electrical Engineer} from R. {Sir Henry Royce} DYNAMO BRUSHES. Great care should be taken before departing from the Le Carbon brushes that I recommended for the dynamos on the car. Royce Ltd experience is that none of the Morganite brushes wear as well or anything like as well as the Le Car-bon brushes recommended in my memos. Hs {Lord Ernest Hives - Chair} RECEIVED AUG 4 1922 R. {Sir Henry Royce} | ||