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 forwarding a Certificate of Assay for tungsten contact points from Johnson, Matthey & Co. Ltd.
| Identifier | ExFiles\Box 35\6\ scan 195 | |
| Date | 1st September 1926 | |
| X 2894 EFC.from Wd.{Mr Wood/Mr Whitehead} Wd{Mr Wood/Mr Whitehead}5/NJ1.9.26. X.2894 - Tungsten Contact Points. I confirm mine Wd{Mr Wood/Mr Whitehead}1/NJ28.8.26. Herewith I send you Certificate of Assay from Johnson, Matthey & Co.Ltd. dated 31st ult. You will note the finding of these people is that both the RR-Reynolds contact points and the Remy contact points are tungsten with traces of iron only. In accordance with our request, Johnson, Matthey & Co. have returned to us the contact levers and points remaining after their tests and I attach same hereto. Wd.{Mr Wood/Mr Whitehead} Cert.etc.att. | ||