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).
Recommending the removal of the red mark on pressure gauges for oil and fuel.
| Identifier | ExFiles\Box 40\1\ Scan008 | |
| Date | 30th May 1919 | |
| To Bn.{W.O. Bentley / Mr Barrington} from E.H. X 3574 Pressure Gauges for Oil & Fuel. EH3/LG30.5.19. 30th. May 1919. With reference to attached, there will be no Relief Valve on the air pressure system on the new car and there will be no means of making any adjustment to ensure that the pressure on all cars will be identical. It is for that reason why we recommend the red mark should be left off because we may get customers who will worry because the pressure does not read on the exact mark which is put on the dials. EH. | ||