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).
Specification and quote for a 10 ampere battery pattern ampere-hour meter.
| Identifier | ExFiles\Box 164\3\ img227 | |
| Date | 19th September 1938 guessed | |
| 1 N.F. 1 10 ampere battery pattern ampere-hour meter fitted with dial scaled up to 0 - 100 amperehours, red empty hand set at 63 amperehours, quick make contact located at fully charged position. £6/12/-d. {John DeLooze - Company Secretary} £6/12/-d. {John DeLooze - Company Secretary} Terms: Strictly nett cash monthly settlement. Carriage: Includes delivery free your address or equal. Delivery: Approx. 4 weeks from receipt of order. E. {Mr Elliott - Chief Engineer} & O.E. | ||