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).
Improvements to the instrument panel illumination on the Phantom III to reduce glare.
| Identifier | ExFiles\Box 91\1\ scan0143 | |
| Date | 9th November 1935 | |
| S/W. Hayling. ->c.c. to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer} x300 Cx{Major Len W. Cox - Advertising Manager}1/KW9.11.35. re- 35-EX. Hs{Lord Ernest Hives - Chair}/Wst2/MA71135 There is just one more remark we would like to make in connection with the instrument illumination which we note you are arranging to improve on the Phantom III. The point is to ask you to try and eliminate all reflected light, or all direct rays of light, when viewed from the front seat. On 35-EX, if I remember rightly, one could see quite clearly the brightly illuminated rim of the dials, which of course quite neutralized the excellent effect of the illumination of the dial and created a certain amount of dazzle. The ideal to strive at - as you can appreciate - is that all one should see is the white faces of the figures and the white surface of the pointer, and no other form of white light at all. Cx.{Major Len W. Cox - Advertising Manager} | ||