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).
Blueprints for the resonant type silencer for the 20/25 HP chassis.
| Identifier | ExFiles\Box 104\2\ scan0049 | |
| Date | 6th July 1932 | |
| TO RHC.{R. H. Coverley - Production Engineer} c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} BY/CS7/EH.6.7.32. Re 20/25 HP. Chassis - Exhaust Fittings - Section 5230. The Resonant Type Silencer. Please receive herewith blueprints of the following drawings, detailed to Scheme 1607:- E.58689 Silencer Shell E.58690 Silencer Assembly Please instruct up the above. Further parts to follow. BY/CS. | ||