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).
Secret memo regarding drawing N.Sch.4421 which shows the J.3. type side steering tube joints for the Spectre with a conventional front axle.
| Identifier | ExFiles\Box 92\5\ scan0185 | |
| Date | 15th March 1935 | |
| X30 / To RY from Da.{Bernard Day - Chassis Design} c.c. HS.{Lord Ernest Hives - Chair} JMG. Wdge SECRET. Da.{Bernard Day - Chassis Design}1/HP.15.3.35. SpectreCodename for Phantom III with conventional front axle. Herewith is N. Sch.4421 which shews the ends of the J.3. type side steering tube joints made suitable for the 1.125 dia. tube. N.Sch.4421 herewith. Da.{Bernard Day - Chassis Design} | ||