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).
Extract from a memo detailing the status of completed experimental work.
| Identifier | ExFiles\Box 80\1\ scan0053 | |
| Date | 10th October 1919 | |
| X.3357. Extract from RHC{R. H. Coverley - Production Engineer}1/LG10.10.19. RE EXPERIMENTAL WORK. Will you kindly note that the following experiments have been finished. Unit. | Chassis. fitted to. | Remarks. ---|---|--- X.3621.- Ignition Bracket toN.78. | 49-GB | Has been cancelled superseded by N.131. X.3565 - Fixing of Thermometer to LeC.1121. | 1.EX. | Now standard. X.3545 - Bevel Gear with greater reduction. BGG | | Fitted to axle - now ready for test. X.3357.- Modification to Steering Pivots to LeC.982. | 1.EX‡ | Now standard. Improved Ball End and Shank to LeC.1036. X.3418. X.3647. | 1.EX. | Also fitted to 10,000 mile chassis. | ||