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).
Testing of a modified Cambridge thermometer with two stops on an experimental car.
| Identifier | ExFiles\Box 175\4\ img105 | |
| Date | 4th November 1927 | |
| X3875 4.11.27. We have handed to Mr. Lidsey a Cambridge Thermometer with contacts, which has been fitted with two stops. Mr. Lidsey will try this out on an experimental car with a view to ascertaining that the top stop does not interfere with the action of the thermometer. EFC. | ||