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 numbered modifications to various components, page 2.
| Identifier | ExFiles\Box 72\2\ scan0148 | |
| Date | 28th September 1925 guessed | |
| -2- 23. X.8140 - New Ignition Governor to LeC 2121. 24. X.8360 - Modified Brake Covers to N.Scheme 2039. 25. X.8305 - Strengthened Fabric Coupling to LeC 2056. 26. X.8300 - Simplified Clutch Stop to LeC 2080. 27. X.8290 - Felt Strip on Undershield to LeC 2091. 28 Wheel Balancer NS{Norman Scott} 2048 RHC.{R. H. Coverley - Production Engineer} MADE AT CROXLEY | ||