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 fitting of one pair of Delco Tungsten Contacts for testing.
| Identifier | ExFiles\Box 35\5\ scan 063 | |
| Date | 21th October 1919 | |
| X.2894. To EFC. from RHC.{R. H. Coverley - Production Engineer} RHC{R. H. Coverley - Production Engineer}2/LG21.10.19. X.1818. RE TUNGSTEN CONTACTS - X.2894. This is to confirm we have fitted one pair (Delco) of Tungsten Contacts^ to screw and blade which has been handed to you for test. RHC.{R. H. Coverley - Production Engineer} 9216 11/18-2M. T.(S) (L.O.G.) S.W.L. | ||