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 a modification to a needle valve for a Phantom engine, including diameter and taper dimensions.
| Identifier | ExFiles\Box 92\2\ scan0184 | |
| Date | 7th November 1933 | |
| [ "V1651", "DIA AT LARGE END .168 -1/2", "TAPER 5°-12' INCLUDED", "DIA AT SMALL END .070 -1", "MOD'N TO NEEDLE VALVE (PHANTOM LEC 31,32)", "OTHER DIMENSIONS SEE (E83974)", "ROLLS-ROYCE, LTD.", "PRINT ROOM", "7 NOV 1933", "DERBY", "RAS", "2-11-33." ], | ||