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).
Specification sheet for standard carbon brushes used in various vehicle components and models.
| Identifier | ExFiles\Box 60\1\ Scan264 | |
| Date | 15th September 1930 | |
| X. 8673 15.9.30. X.5670 X.8673. STANDARD CARBON BRUSHES. PHANTOM II AND L.H. Starter. D.71279 Morganite C.M.3. Dynamo. Main D.70912/3 Le Carbone Z } Control D.70966/7 " " " } 50% each. Main D.71256/7 Morganite } Control D.71258/9 " } 20/25 HP. Starter. D.50228 Morganite Dynamo. Main & D.51294/5 Morganite } 50% each Control. D.51325/6 Le Carbone } Ignition Distributor. D.50109 Morganite. | ||