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).
Instruction to manufacture a .900 steering worm without oil grooves.
| Identifier | ExFiles\Box 67\4\ scan0365 | |
| Date | 1st August 1927 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} X82130 Hs{Lord Ernest Hives - Chair}/Rn{Mr Robinson}3/LG13. 8. 27. .900 STEERING WORM. Will you please manufacture this worm without oil grooves. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||