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 showing the arrangement of two Zenith carburetters on the 20 HP engine.
| Identifier | ExFiles\Box 5a\5\ 05-page044 | |
| Date | 31th March 1927 guessed | |
| [ "6", "SPLAYED EXH. PIPES.", "HORIZONTAL ZENITH TRIPLE DIFFUSER CARB.", "ARRANGEMENT OF THE TWO ZENITH CARBURETTERS ON THE 20 H.P.", "EXH. PORTS", "INLET MANIFOLDS", "FITTINGS FOR THE TWO ZENITH CARBS.", "32", "81" ], | ||