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).
List of experimental parts fitted to chassis 6.EX.
| Identifier | ExFiles\Box 42\4\ Scan080 | |
| Date | 22th June 1920 | |
| x3889 Extract from RHC{R. H. Coverley - Production Engineer}1/LG22.6.20. RE CHASSIS 6.EX. Will you kindly note that the above car has been fitted with the following experimental parts :- X.3532. Rear Axle. Tube fitted with Oil Bevels. - N.1912. X.3791. Side Steering Tube - N.sch. 325. X.3889. Petrol Tank and Side Filler N.sch. 500. X.3444. Hand Pump Bracket on Instrument Board. - N. sch. 94. Main Switch. X.3934a. Position 1" higher on Dashboard. N. sch. 108. X.3969. Cover Fixing Nuts. N.sch. 298. | ||