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).
Confirming the completion of an experiment on strengthened valve spring washers.
| Identifier | ExFiles\Box 36\1\ scan 141 | |
| Date | 8th October 1917 | |
| To EFC. from EHC. 8.10.17. X.2925F/D - VALVE SPRING WASHERS STRENGTHENED TO LEC.857. The above experiment is now completed and ready for test. EHC. R.R. 285 B (S80 H) (S.D. 442, 6-6-17) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1966 | ||