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).
Requesting improvements to the 20 HP Rear Axle pinions, referencing another memo.
| Identifier | ExFiles\Box 49\2\ Scan177 | |
| Date | 17th November 1923 | |
| To BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} X4256 R2/M17.11.23. RE. 20 HP. REAR AXLE X.4256 Referring to memo. HS{Lord Ernest Hives - Chair}2/LG14.11.23., please put in hand five pitch, replace pinions with all improvements suggested, including air hardened steel, increase length of root, round off ends of teeth, and radius of root if possible. R.{Sir Henry Royce} | ||