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).
Experimental parts fitted to a Tool Engine.
| Identifier | ExFiles\Box 76\4\ scan0063 | |
| Date | 19th September 1914 | |
| C O P Y. Mr. Mercer. 19.9.14. Re Tool Engine. The following experiments have been fitted to this Engine:- Zephyr Pistons. X.1176. Connecting Rods. E.3718 modified to Dwg. E.1426. X.1428 Copper Asbestos washers on Valve Plugs. X.1416. Permatine Washers, E4074/5. X.916. R.R. 285A (150 H) (W.W. 718. 26-8-14) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 0752. | ||