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 an Oil Jet made of brass.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan048 | |
| Date | 15th August 1929 | |
| Hs{Lord Ernest Hives - Chair} 228, 15-8-29, SCREW 3/8 DIA 20 TPI, .062 DIA, +1 -4, 1.250, 25, .325, .250, 1.125, 410, .400, SCREW 1/4 GAS, 60°, .601 ACROSS FLATS, .187 DIA, +3 -2, .450 DIA, 2.300, -10, OIL JET - 1 OFF - BRASS - | ||