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).
Extract from Mr. Hancock's report on the performance of an ignition coil on car 23-EX after 5,000 miles.
| Identifier | ExFiles\Box 61\1\ scan0110 | |
| Date | 7th May 1930 guessed | |
| Y 6011 4.530. Extract from Mr.Hancock's report on 23-EX after 5,000 miles. IGNITION COIL TO D.71650. CASE MOULDED WITH BRITISH MADE BAKELITE MATERIAL X.616B. There has been no trouble with the coil ignition. No deterioration of the coil has been noticed. | ||