B.5 with Wraith gearbox, referencing another file.
| Identifier | ExFiles\Box 9\4\ 04-page30 | |
| Date | 22th December 1938 | |
| Rm. {William Robotham - Chief Engineer} 641. Da. {Bernard Day - Chassis Design} 419. 22.12.38. B.5 with Wraith gearbox. see file 628 | ||
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).