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).
Page 2 of a letter requesting a dozen German type diaphragms.
| Identifier | ExFiles\Box 149\1\ scan0278 | |
| Date | 18th August 1936 guessed | |
| -2- rule out the possibility of foreign matter getting to the valves. We thank you for the thermostatically controlled float chamber and the new type diaphragms. We should be much obliged if you could also send a dozen German type diaphragms as at present fitted. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||