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 suggested air cleaner pipe for a carburettor air intake.
| Identifier | ExFiles\Box 31\4\ Scan082 | |
| Date | 27th August 1931 | |
| 2 15/16" 1 3/4 DIA 2" DIA. CARBURETTER AIR INTAKE SUGGESTED AIR CLEANER PIPE FOR ROLLS ROYCE THE S.U.Cº ADDERLEY PARK B'HAM DRAWN H.H. DATE 27-8-31 | ||