Requesting the calibration check of Negretti & Zambra thermometers.
| Identifier | ExFiles\Box 175\5\ img074 | |
| Date | 25th March 1939 | |
| 6003. Hl/Mr. Squires. Rm {William Robotham - Chief Engineer} /FJH {Fred J. Hardy - Chief Dev. Engineer} 4/25.3.39. Will you please check the calibration of the Negretti & Zambra thermometers which have been handed to you by Rm {William Robotham - Chief Engineer} /ABR. {A. B. Roberts} Rm {William Robotham - Chief Engineer} /FJH. {Fred J. Hardy - Chief Dev. Engineer} | ||
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).