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).
Model water boiling indicator lamp for the 40/50 HP, noting a difficulty in obtaining red glass.
| Identifier | ExFiles\Box 175\4\ img056 | |
| Date | 20th November 1926 | |
| W/S. C. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Y3875 Hs{Lord Ernest Hives - Chair}/Rnl/LG20.11.26. WATER BOILING INDICATOR. We are sending to you herewith a model of the dashboard lamp we propose to fit to the 40/50 HP. The only difference between this and the production model will be plain glass instead of the present fitting. We are however having difficulty in obtaining red plain glass. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||