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).
Typed list of parts with handwritten annotations and confirmations.
| Identifier | ExFiles\Box 142\4\ scan0091 | |
| Date | 2nd April 1938 | |
| -2- Rm{William Robotham - Chief Engineer}6/R.2.4.38. GW740 - Housing - Main Spring. Yes GW1944 - Clutch Casing. OK use GW1666 - Bracket. } yes a/m models by CRH } CRH GW1665 - Bracket. } GW1650 - Retaining Cover. Yes GW1860 - Brake Shoe. Yes GW1861 - " " Yes Rm.{William Robotham - Chief Engineer} | ||