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).
Recommending the purchase of Cleveland valve springs for maintenance stock based on positive experience.
| Identifier | ExFiles\Box 19\3\ Scan259 | |
| Date | 5th April 1930 | |
| To Hs.{Lord Ernest Hives - Chair} from Oy. cc Smn. (strikethrough) X7772- Oy2/DM.{D. Munro}5.4.30. Valve Springs. Sec.5060. Should appreciate your comments on the Cleveland Valve Springs. From experience on 404 MR they seem remarkably good, and I have in mind recommending R.R.A.I. to buy them for Maintenance stock. pp Oy [Signature] | ||