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).
Diagram illustrating the path of discharge along a surface within a component.
| Identifier | ExFiles\Box 69\1\ scan0089 | |
| Date | 7th January 1928 guessed | |
| WE.108. PATH OF DISCHARGE. | ||