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).
Request from Mr. Royce to trial pressure gauges with luminous hands for visibility in the dark.
| Identifier | ExFiles\Box 40\1\ Scan011 | |
| Date | 13th August 1919 | |
| R R 235a (200 T) (S.F. 103. 25-10-18) G 2241 To Mr. Mills O.O. From EH. EH8/LG13.8.19. 13th. Aug. 1919. RE PRESSURE GAUGES. X 3544 Mr. Royce desires us to try some Pressure Gauges with luminous hands. We do not require a luminous dial or figures, all we require is, a luminous hand on the gauges so that in the dark it is possible to see that the oil and air pressure is satisfactory. Will you please let us know what you can do in this matter. EH. | ||