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).
From EFC to Roy requesting the procurement of Manganin wire as a preference over Eureka wire.
| Identifier | ExFiles\Box 63\1\ scan0187 | |
| Date | 27th March 1928 | |
| Roy.{Sir Henry Royce} from EFC. X 3035 EFC1/T27.3.28. Further to our EFC1/T23.3.28, we should be pleased if you would try and obtain the Manganin wire specified therein, i.e. from some other source, as this is really what is required for our purpose in preference to Eureka. We have received 1 lb. of 24 SWG. D.C.C. Eureka. EFC. | ||