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 for a Phantom II twin carburettor air silencer.
| Identifier | ExFiles\Box 13\3\ 03-page335 | |
| Date | 19th August 1932 | |
| PHAN. II TWIN CARB. AIR SILENCER., SILENCER TO BE MADE OF 22 S.W.G. (.028), BONNET, 4 LOCATING TABS, 8.675, .96, .546, .5, 6.5, 7.2, 6'', 4.75'', 3'', 2 1/2, 19 AUG. 32, T3 1124 C2 | ||