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).
Schedule N.Sch.4849, detailing the lightening holes in the Wraith II gearbox's top and third speed sliding piece.
| Identifier | ExFiles\Box 8\11\ 11-page031 | |
| Date | 8th July 1936 | |
| K1044 628 C. C. to. Mr. HS.{Lord Ernest Hives - Chair} RWD. Hg/Dm.{D. Munro} Wraith II Gearbox. E/HDY.{William Hardy}1/HP.8.7.36. We send herewith N.Sch.4849 which shows the lightening holes in the top and third speed sliding piece. E/HDY.{William Hardy} | ||