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).
Blueprint of a typical A.C. silencer for a 5-litre car.
| Identifier | ExFiles\Box 179b\2\ img180 | |
| Date | 28th November 1932 guessed | |
| TYPICAL A.C. SILENCER 5 LITRE CAR S, HS{Lord Ernest Hives - Chair} 783 | ||