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).
Assigning numbers to two left-hand chassis, 24-EX and 25-EX.
| Identifier | ExFiles\Box 19\3\ Scan245 | |
| Date | 31th March 1930 | |
| BY.{R.W. Bailey - Chief Engineer} From Hs.{Lord Ernest Hives - Chair} c. to DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} c. to RHC.{R. H. Coverley - Production Engineer} x777² Hs.{Lord Ernest Hives - Chair}2/MJ.31.3.30. L/H.{Arthur M. Hanbury - Head Complaints} CHASSIS. The numbers we have given for the two left- hand chassis are 24-EX and 25-EX. 24-EX is the one with the close coupled saloon body. Hs.{Lord Ernest Hives - Chair} | ||