Instruction to fit a Phantom III calorstat spring to a 3.B.1V radiator calorstat.
| Identifier | ExFiles\Box 94\3\ scan0139 | |
| Date | 28th January 1937 | |
| 340 To HPS. {Horace Percy Smith - Experimental Factory Mgr} from Rm {William Robotham - Chief Engineer} /Std. Rm {William Robotham - Chief Engineer} /Std.2/AP.28.1.37. Will you please fit a Phantom III. calorstat spring E.83210 to 3.B.1V. radiator calorstat while the car is in the shop. This may entail slight machining of the calorstat guide. Rm {William Robotham - Chief Engineer} /Std. | ||
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).