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).
Hand-drawn diagram of a mud shield for the Phantom III gearbox, viewed from underneath.
| Identifier | ExFiles\Box 91\3\ scan0216 | |
| Date | 23th September 1935 guessed | |
| CHATEAUROUX VIEW AT X LOOKING IN DIRECTION OF ARROW .. STEEL PLATE BOLTED ONTO GEAR BOX. SECTION A.A. FLUTED RIBS WIRED EDGE FELT WIRED ONTO SHIELD WIRED EDGE VIEW OF MUD SHIELD FOR PHANTOM III GEAR BOX. LOOKING FROM UNDERNEATH. HFH{Hoppy F. Hamilton} | ||