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).
Product sheet for a British Sangamo Direct Current Ampere-Hour Meter, Type N.T. Vehicle Pattern.
| Identifier | ExFiles\Box 164\3\ img210 | |
| Date | 1st May 1938 guessed | |
| BRITISH SANGAMO COMPANY DIRECT CURRENT AMPERE-HOUR METERS. TYPE N.T. VEHICLE PATTERN. 2 Wire. Text on meter dial: FULL 30 60 90 120 150 180 210 240 270 AMPERE HOURS Text on meter plaque: SANGAMO TYPE NT METER NO. 4766858 AMPS 60 REV'S PER 50 A.H. DIV BRITISH SANGAMO CO. LTD. ENFIELD, MIDDLESEX, ENG. Fig. 2. Direct Current N.T. Ampere-Hour Meter. British Sangamo Co., Ltd., Cambridge Arterial Road, Enfield, Middlesex, England. A 145/0834 Sheet. | ||