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).
Comparison between Watford EW6 and Bosch magneto pole pieces, including a sketch.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan120 | |
| Date | 20th August 1928 guessed | |
| -3- The Watford EW6. magneto pole pieces are only stepped on the trailing edge, as in sketch :- Another point is that the core section of the Bosch is more nearly circular than the Watford, i.e. nearer to the condition of least periphery for a given area. We are sending a copy of this report to Mr.North of the Watford Company. EFC. | ||