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).
Letter to Siemens-Schuckert Ltd. requesting a demonstration of noise measuring instruments.
| Identifier | ExFiles\Box 138\1\ scan0221 | |
| Date | 7th January 1936 | |
| X1160 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Smth.1/JH. 7th January, 1936 Messrs Siemens-Schuckert Ltd., 30-34, New Bridge Street, London, E.C.4. Your Ref. H1/HUB/EJT. Dear Sirs, We should be glad to have your noise measuring instruments demonstrated to us when they are available. Yours faithfully, For Rolls Royce. Ltd. | ||