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).
To Mr Barrington regarding the satisfactory testing of large taper valve springs.
| Identifier | ExFiles\Box 80\3\ scan0132 | |
| Date | 26th July 1912 | |
| x290 Mr Barrington. 26.7.12 RE LARGE TAPER VALVE SPRINGS E 2614. These have been tested on the jig equivalent for 10000 miles on the road and are quite satisfactory. We are testing a further set of the above. File E.P. | ||