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).
Test report on the performance of a Seth Thomas clock after three months of use in a car.
| Identifier | ExFiles\Box 164\1\ img016 | |
| Date | 10th March 1931 | |
| X6030. 10.3.31. X.6030. SETH THOMAS CLOCK. This clock has now been run about three months on EFC's car. It failed once early on, stopping for no apparent reason and when subsequently tested on bench was found O.K. Apart from this it has operated entirely satisfactorily with the exception that the regulation of the clock is somewhat difficult to adjust very accurately. EFC. | ||