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).
Comparative costs of ammeters from Weston and Elliott Brothers.
| Identifier | ExFiles\Box 168\5\ img048 | |
| Date | 14th January 1926 | |
| EFC. from ROY.{Sir Henry Royce} X.4622 ROY{Sir Henry Royce}5/AG14.1.26 X.4622 - ELLIOTT AMMETERS Replying to your Memo. EFC4/T13.1.26. Our present Weston Ammeter costs us 35/6d. and when I last discussed this question with Messrs. Elliott Brothers, about a year ago, they put forward a provisional figure of 38/6d. I feel sure, however, they would ease this figure, as they are so keen to show us what they can do with these Ammeters. ROY.{Sir Henry Royce} | ||