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).
Requesting the rebuild of the B-11 engine unit following completion of tests for Shelsley.
| Identifier | ExFiles\Box 90a\2\ Scan220 | |
| Date | 20th September 1934 | |
| To RHC.{R. H. Coverley - Production Engineer} X7962 Ha/Rm.{William Robotham - Chief Engineer}E/KW.20.9.34. Hall's Engine - B-11 Unit. We have now completed our tests on this unit for Shelsley Weah. Will you please rebuild the unit exactly as previously except for the new clutch already instructed and the 9.2 - 1 C/R head in its final form. Ha/Rm.{William Robotham - Chief Engineer} | ||