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).
The oxidation of lever and screw points, concluding their general condition after testing is good compared to standard platinum.
| Identifier | ExFiles\Box 35\6\ scan 158 | |
| Date | 20th June 1920 | |
| RR 238 (150 BKS.) (BH57.20-6-20.) MP 224355 ROLLS-ROYCE LTD. INSTRUCTIONS. To 19 Order No. 2. Customer's No. The lever point does not appear to have suffered from oxidation appreciably, whilst the screw point surface has the characteristic blue oxide associated with tungsten under these conditions. In conclusion, it is suggested that the general condition of these points, compared with the standard platinum after similar tests, is good. Signed H.E.W. This Sheet must be filed on completion of the work. | ||