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).
New gearbox specification for B.III and B.50 chassis.
| Identifier | ExFiles\Box 109\1\ scan0038 | |
| Date | 7th September 1938 | |
| -try. 666. By/Cvh. 2/E.{Mr Elliott - Chief Engineer} 7.9.38. B.III & B.50. chassis. New Gearbox Specification. see file 1153 | ||