Inquiry to Ferranti's regarding the production of a polarised moving iron chassis ammeter.
| Identifier | ExFiles\Box 168\5\ img215 | |
| Date | 20th August 1931 | |
| X6132 Roy. {Mr H. Royce - Buyer} from Hs {Lord Ernest Hives - Chair} /HEW. Hs {Lord Ernest Hives - Chair} /HEW3/AD20.8.31. We should be glad to know if Ferranti's have done anything further in the matter of producing for us a polarised moving iron chassis ammeter. Hs {Lord Ernest Hives - Chair} /HEW. | ||
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).