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 to send a car to London to test a temperature indicator by driving with the radiator shutters closed.
| Identifier | ExFiles\Box 175\4\ img060 | |
| Date | 7th December 1920 | |
| S/W Hs.{Lord Ernest Hives - Chair} X3875 C4/07.12.20. Re Temperature Indicator. ------- Have you a car (either 40/50 h.p. or 20 h.p.) that you could send up to London, with this on, so that two or three of us can drive it with the shutters closed to see if the indicator gives sufficient warning? BJ. particularly wishes to try it, and two or three others would also like to do so. C. | ||