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).
Drawing of a telescopic experimental air silencer.
| Identifier | ExFiles\Box 13\4\ 04-page058 | |
| Date | 22th November 1932 guessed | |
| TELESCOPIC EXPERIMENTAL AIR SILENCER. FILLED WITH CLEANER SMITH'S AIR WIRE. TO CARB. | ||