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).
Advertisement page from 'The AUTOCAR' for Vokes battery capacity indicators and air filters.
| Identifier | ExFiles\Box 54\2\ Scan220 | |
| Date | 13th April 1928 | |
| THE AUTOCAR ADVERTISEMENTS.—SUPPLEMENT APRIL 13TH, 1928. i. Telegrams: Vokesacess, Put, London. Phone: Putney 5851-2. Left advertisement box (partially torn): Accumulator, ... similar to illustration, PRICE 12/- Left advertisement main: VOKES INDICATOR BATTERY CAPACITY. Consists of a first grade Moving Coil Meter calibrated in Ampere Hours. The colour division scale showing Low, Medium and Full. When ordering please state :— Make of Battery. Voltage of Battery. Actual Capacity. Battery Type No. Supplied in Black or Nickel Plated Finish. Price: 30/- Text on gauge: LOW MEDIUM FULL 8 18 28 38 48 BATTERY CAPACITY AMPERE-HOURS PROV. PATENT No. 3617 BATTERY TYPE No. W.S.M DYNAMO CHARGING SWITCH OFF Right advertisement: PROTECTOMOTOR VOKES AIR FILTER Guaranteed As Fitted to 99.9% Efficient the Austin 12 H.P. Car The VOKES PROTECTOMOTOR can be fitted to your Austin 12 Car in a few minutes. No drilling or tapping is necessary and there is nothing to get out of order. The PROTECTOMOTOR will definitely prolong the life of your engine from 3 to 5 times normal by keeping all harmful road dust and grit out of the motor. The PROTECTOMOTOR is self-cleaning and cannot restrict flow of air. Saves petrol and oil. Price: £4 - 2 - 6 Complete. Company details at bottom: C. G. {Mr Griffiths - Chief Accountant / Mr Gnapp} VOKES & Co., Vokesacess House, 95-97, Lower Richmond Rd., Putney. | ||