Blueprint with dimensions of a 'larger' banjo used on petrol flow tests, supplied with Zenith petrol filters.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan131 | |
| Date | 7th November 1929 | |
| HS {Lord Ernest Hives - Chair} 244 6-11-29 .675 DIA .400 DIA .312 DIA .280 .480 .120 .480 DIA .775 DIA OF UNDERCUT .500 .440 DIA .950 DIA DIMENSIONS OF 'LARGER' BANJO USED ON PETROL FLOW TESTS - S.S. SUPPLIED WITH ZENITH PETROL FILTERS. ROLLS-[...] FDR 7 NOV 1929 D[...] WB {Mr Brazier / Mr Bell} | ||
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).