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).
Recommendation to procure six Ferranti chassis ammeters for comparison against existing instruments.
| Identifier | ExFiles\Box 168\5\ img156 | |
| Date | 9th September 1929 | |
| X 3498. By.{R.W. Bailey - Chief Engineer} from EFC. EPC2/ADS.9.29. X.3498. FERRANTI AMMETER. We recommend that we should put in hand, a supply to us of six Ferranti chassis ammeters made up to our standard finish, for direct comparison with our present standard and the six Park Royal instruments which we are obtaining. We think this would be a good move because of the standing of the name 'Ferranti'. If you agree will you please give the necessary instructions. EFC. | ||