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 an exhaust system with an expansion box.
| Identifier | ExFiles\Box 169\3\ img025 | |
| Date | 30th January 1933 guessed | |
| ALL BAFFLES MODIFIED Ex 10369 E10373 14 SWG (.080) 1.875 DIA. PIPE .750 DIA. DOWNTAKE PIPE 12SWG (.104) EXPANSION BOX TO H.G.911 ARRANGEMENT OF EXHAUST SYSTEM ON PEPE. 3, | ||