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).
The swapping of servo friction plates between two experimental chassis, 19-EX and 22-EX.
| Identifier | ExFiles\Box 16\3\ Scan092 | |
| Date | 10th March 1931 | |
| FOR FILES. C. For Rn.{Mr Robinson} X7370 SERVO. 10.3.31. 19-EX. servo friction plates fitted with die pressed material is being taken off and refitted to 22-EX. 22-EX. servo friction plates fitted with cotton A.{Mr Adams} material is being taken off and refitted to 19-EX. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} | ||