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 to Messrs. British Carbons requesting a list and specification for starter motor and dynamo brushes being tested.
| Identifier | ExFiles\Box 62\3\ scan0252 | |
| Date | 18th November 1931 | |
| X6066. Hs{Lord Ernest Hives - Chair}/Wst.1/AD. November 18th, 1931. Messrs. British Carbons, Crowther St.{Capt. P. R. Strong} Bradford, Yorks. Dear Sirs, With regard to the starter motor and dynamo brushes we are testing of your manufacture, we should be glad if you will kindly send us a list of the various grades of brushes made by yourselves for this purpose with, if possible, a specification of their electrical and frictional characteristics. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||