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).
Note stating that a specific car will not be fitted with a cantilever battery support.
| Identifier | ExFiles\Box 19\5\ Scan110 | |
| Date | 14th November 1930 | |
| Ev.{Ivan Evernden - coachwork} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} x8992. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/MJ.14.11.30. 27-EX. Please note that this car will not have the cantilever battery support fitted. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||