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).
Request to complete Phantom III gearbox No. 4HS for chassis 33-EX with specific modifications.
| Identifier | ExFiles\Box 94\1\ scan0362 | |
| Date | 24th April 1936 | |
| 4326 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}11/KW.24.4.36. Phantom III Gearbox No. 4HS.{Lord Ernest Hives - Chair} Will you please complete this gearbox for 33-EX to include - (1) Strengthened 3rd speed gears, N.Sch.4734. (2) 8° American type cones, the outer cones to be of high brinell and diamond finished so as not to have a smooth surface. All except the outer cones of (2) are ready for fitting. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||