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 results for a Negretti and Zambra Distance Thermometer.
| Identifier | ExFiles\Box 40\1\ Scan057 | |
| Date | 23th October 1923 guessed | |
| Hs.{Lord Ernest Hives - Chair} X3695 H11/EFL01023. Laboratory. Re Negretti and Zambra Distance Thermometer. ------------------------------------------- We have tested tha above instrument and give below the results obtained. Actual Temperature °F.{Mr Friese} Temperature indicated by Thermometer. Error. ---------------------- ------------------------------------- ------ 32. Below 20 (minimum figure on instrument. ----- 60.8 46. -14.8 (Room temperature). 212 198.5 -13.5 Instrument returned herewith. H1. HC | ||