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).
Request to obtain a Ferranti ammeter with a front bevel glass as per the Bentley standard.
| Identifier | ExFiles\Box 168\5\ img272 | |
| Date | 27th January 1934 | |
| 23498 Roy.{Sir Henry Royce} From Ha/Wst. Ha/Wst.1/MA.27.1.34. FERRANTI AMMETER. Will you please obtain for us another Ferranti ammeter similar to the sample we are testing but arranged with a front bevel glass as Bentley standard. Ha/Wst. | ||