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).
Test report on a 10% gold and 90% silver alloy used for cutout contact points.
| Identifier | ExFiles\Box 35\6\ scan 390 | |
| Date | 23th December 1927 | |
| EFC4/T23.12.27. -2- Contd. turns out to be 10% gold 90% silver alloy, i.e. the same alloy that we are using for our cutout contact points. Accordingly we had a standard lever and screw fitted with points of this material and we have run the [strikethrough:initial] usual 10,000 miles on the bench, not under standard conditions, but under scrubbing action conditions of the normal type. You will see that the result is not at all bad. EFC. | ||