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).
Examination of six 30-HP oil relief valves taken at random from the works.
| Identifier | ExFiles\Box 96\2\ scan0127 | |
| Date | 7th August 1936 | |
| To R.{Sir Henry Royce} c. to HY.{Tom Haldenby - Plant Engineer} c. to D.T. c. to RX. c. to HE/Wm. +554 Ha/GWH.{George W. Hancock - Head Chateauroux}17/JH.7.8.36. 30-HP Oil Relief Valves. As suggested I have examined, along with Mr. Scott, 6 release valves in the Works taken at random. The valves were free from burns and no complaint could be made. Ha/G.W.Hancock. | ||