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).
Attaching a preliminary drawing of valve rockers without rollers.
| Identifier | ExFiles\Box 43\3\ Scan094 | |
| Date | 16th December 1926 | |
| X4003 To RG.{Mr Rowledge} from E.{Mr Elliott - Chief Engineer} c.c. to BJ. EY. HS.{Lord Ernest Hives - Chair} E1/M16.12.26. RR.F.10. PRELIMINARY DRAWING OF VALVE ROCKERS (WITHOUT ROLLERS). X.4003. X.3822. We attach the above drawing herewith LeC.2344. E.{Mr Elliott - Chief Engineer} | ||