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).
Drawing LeC.3680, an improved experimental exhaust valve to be made in Austenetic steel.
| Identifier | ExFiles\Box 31\2\ Scan139 | |
| Date | 28th October 1933 | |
| X1497 To Hs.{Lord Ernest Hives - Chair} from E/JNR.{Charles L. Jenner} c. By RHG E/JNR.{Charles L. Jenner}1/HP.28.10.33. We send you herewith: LeC.3680 shewing an improved experimental exhaust valve to be made in Austenetic steel. Handed to you on Sat. E/JNR.{Charles L. Jenner} | ||