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).
Analysis of contact points from a Remy 12-cylinder ignition set, identifying a platinum-gold alloy.
| Identifier | ExFiles\Box 35\5\ scan 043 | |
| Date | 21th August 1918 | |
| X2894 EFC. 21.8.18. X.2894 - RE CONTACT POINTS FROM REMY 12 CYLINDER IGNITION SET X.2814.X.1818. These points were not attacked by acids and submitted to treatment only after being attacked by aluminium. They appear to be a platinum-gold alloy with traces of the rarer metals as impurities. The approximate analysis is Au. 75% Pt. 25% Tests were difficult owing to small quantity of alloy available. HCH. | ||