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).
Design drawing for a 20-HP experimental exhaust manifold.
| Identifier | WestWitteringFiles\O\2April1926-June1926\ Scan084 | |
| Date | 1st March 1926 | |
| [ "EXPL. 20-HP EXHAUST MANIFOLD", "LEAD IN AT ABOUT 30°", "30°", "1.500 DIA", "BRANCH PIPES INCR", "To 1.500 DIA WHERE", "THEY MERGE INTO", "DOWN PIPE", "INTERNAL DIA 2.000", "To SILENCER", "ael/1/3/26" ], | ||