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 order a hydrometer to measure the quantity of antifreeze in cooling systems.
| Identifier | ExFiles\Box 151\3\ scan0269 | |
| Date | 17th November 1938 | |
| 1285 To Hl/Mr. Squires. Rm {William Robotham - Chief Engineer} /ABR. {A. B. Roberts} 15/JH.17.11.38. Will you please order a suitable hydrometer to measure the quantity of anti freeze in the cooling systems as discussed with you. Rm {William Robotham - Chief Engineer} /ABR. {A. B. Roberts} | ||