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).
Confirming the dispatch of four photostat copies and an original diagram regarding the interference of involute teeth.
| Identifier | ExFiles\Box 28\5\ Scan105 | |
| Date | 28th April 1919 | |
| To E.{Mr Elliott - Chief Engineer} from EFC. EFC2/T28.4.19. X.2044. RE INTERFERENCE OF INVOLUTE TEETH. As requested in your E2/G17.4.19., we are sending you herewith, four photostat copies of diagram, together with original. EFC. | ||