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).
From 'Sg.' to 'Hs.' requesting to be kept informed about the results regarding exhaust valves for car and aero engines.
| Identifier | ExFiles\Box 14\6\ Scan174 | |
| Date | 2nd September 1930 | |
| COPY. x) 230 To Hs.{Lord Ernest Hives - Chair} From Sg.{Arthur F. Sidgreaves - MD} Sg{Arthur F. Sidgreaves - MD}19/E2.9.30. Re. Exhaust Valves - X.4011. Car and Aero Engines. X.4488. X.7230. X.5230. Referring to R1/M13.8.30 I should be glad if you would keep me in touch with results. Sg.{Arthur F. Sidgreaves - MD} | ||