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).
Recommendation for the maintenance of make and break contact points.
| Identifier | ExFiles\Box 35\6\ scan 417 | |
| Date | 16th April 1928 | |
| X 2894 By/Cgh.{W Clough} from EFC. EFC6/T16.4.28. MAKE AND BREAK CONTACT POINTS. We agree to the deleting of the file, and would recommend the inclusion of a small oil stone for re-touching the contacts, which should only be necessary every 10000 miles. EFC. | ||