| Description | Date | Identifier | |
| Clarifying the requirements for Messrs. Elliott to produce an ammeter superior to the Weston instrument. | 3rd Mar 1925 | Box 168 \ 5 img024 | |
| Complaint about a cracked glass on an Elliott Ammeter. | 27th Apr 1925 | Box 168 \ 5 img025 | |
| From ROY to EFC regarding the evaluation and potential order of ammeters from Elliott Brothers. | 14th Jul 1925 | Box 168 \ 5 img026 | |
| Confirming an order for four Elliott ammeters for endurance testing on experimental cars. | 20th Sep 1925 | Box 168 \ 5 img027 | |
| Instruction sheet regarding the performance and accuracy of Elliott ammeters. | 11th Sep 1925 | Box 168 \ 5 img028 | |
| Requesting to fit two Elliott ammeters onto a 20 HP chassis and chassis 8-EX for testing purposes. | 11th Sep 1925 | Box 168 \ 5 img029 | |
| Faults found in two out of four Elliott ammeters received for testing. | 12th Sep 1925 | Box 168 \ 5 img030 | |
| The condition and electrical calibration of an Elliott Milliammeter No. 4808. | 22th Sep 1925 | Box 168 \ 5 img031 | |
| Instruction sheet regarding the accuracy testing of two Elliott ammeters after repair. | 2nd Dec 1925 | Box 168 \ 5 img032 | |
| The replacement and repair of Elliott ammeters on various chassis. | 1st Dec 1925 | Box 168 \ 5 img033 | |
| Sending a damaged Weston ammeter for repair to the Weston Electrical Instrument Co. | 9th Dec 1925 | Box 168 \ 5 img034 | |
| Return of a Weston Ammeter from an experimental car for repair. | 14th Dec 1925 | Box 168 \ 5 img035 | |
| Customer complaint about an American ammeter and the desire to use a British-made alternative. | 16th Dec 1925 | Box 168 \ 5 img036 | |
| Customer complaint about the 'U.S.A.' branding on a car's ammeter, urging for a British-made replacement. | 10th Dec 1925 | Box 168 \ 5 img037 | |
| Evaluation and testing of chassis ammeters from different suppliers, Weston and Elliott Bros. | 1st Jan 1926 | Box 168 \ 5 img038 | |
| Testing of Elliott ammeters on an experimental chassis before standardisation. | 1st Jan 1926 | Box 168 \ 5 img039 | |
| The mileage accumulated by various Elliott ammeters on different test cars. | 4th Jan 1926 | Box 168 \ 5 img040 | |
| Complaint about the dial finish on sample ammeters and proposing an alternative supplier. | 4th Jan 1926 | Box 168 \ 5 img041 | |
| Finish of Elliott ammeters compared to standard Weston instruments and proposing a solution for a uniform appearance. | 4th Jan 1926 | Box 168 \ 5 img042 | |
| The experimental fitting of an Elliott Ammeter. | 4th Jan 1926 | Box 168 \ 5 img043 | |
| Choice between Elliott and Weston ammeters for a customer's vehicle. | 8th Jan 1926 | Box 168 \ 5 img044 | |
| Requesting the comparative cost of the Elliott ammeter versus the current standard instrument. | 13th Jan 1926 | Box 168 \ 5 img045 | |
| Requesting a comparative cost for Elliott ammeters and questioning the manufacturing origin of the Western Electric Company's ammeter. | 13th Jan 1926 | Box 168 \ 5 img046 | |
| Query regarding omitting the 'made in America' indication on a Weston Ammeter. | 13th Jan 1926 | Box 168 \ 5 img047 | |
| Comparative costs of ammeters from Weston and Elliott Brothers. | 14th Jan 1926 | Box 168 \ 5 img048 | |
| Proposal to exchange and test an Elliott ammeter for standardization. | 15th Jan 1925 | Box 168 \ 5 img049 | |
| Comparative cost and sourcing queries of Elliott and Weston ammeters. | 18th Jan 1926 | Box 168 \ 5 img050 | |
| Follow-up memo from Elliott Brothers of London regarding the trial of miniature ammeters. | 27th Jan 1926 | Box 168 \ 5 img051 | |
| 10,000-mile test of an Elliott ammeter on a 40/50 car and a planned test on a 20 HP chassis before standardisation. | 1st Feb 1926 | Box 168 \ 5 img052 | |
| The performance of the Elliott ammeter compared to the Weston instrument. | 1st Feb 1926 | Box 168 \ 5 img053 | |
| Page 2 of a report on ammeters from Messrs. Elliott, detailing a previous test failure and comparing the instrument's appearance to a Weston. | 1st Feb 1926 | Box 168 \ 5 img054 | |
| The mileage test performance and condition of Elliott ammeters. | 29th Jan 1926 | Box 168 \ 5 img055 | |
| Dismantling of chassis 8-EX and the request for specific parts to be returned for examination. | 4th Feb 1926 | Box 168 \ 5 img056 | |
| Instruction sheet detailing the satisfactory performance of an Elliott ammeter after 16,644 miles. | 16th Feb 1926 | Box 168 \ 5 img057 | |
| Instruction sheet detailing an error on an instrument board. | 29th Jan 1926 | Box 168 \ 5 img058 | |
| From ROY to EFC regarding the progress of Elliott Ammeter tests and a 10,000-mile test on the 20 HP chassis. | 17th Feb 1926 | Box 168 \ 5 img059 | |
| Delayed 10,000-mile test of an Elliott Ammeter. | 18th Feb 1926 | Box 168 \ 5 img060 | |
| Ordering and standardising ammeters for the 40/50 HP and 20 HP chassis. | 1st Mar 1926 | Box 168 \ 5 img061 | |
| Mileage to date for Elliott ammeters, excluding a specific 10,000-mile test. | 8th Mar 1926 | Box 168 \ 5 img062 | |
| Progress of a 10,000-mile test on a 20 HP chassis equipped with an Elliott ammeter. | 8th Mar 1926 | Box 168 \ 5 img063 | |
| Damaged Weston ammeter being sent for repair due to a previously identified fault. | 9th Mar 1926 | Box 168 \ 5 img064 | |
| The status and issues with two Elliott ammeters. | 13th May 1926 | Box 168 \ 5 img065 | |
| The return of a faulty Elliott ammeter for correction. | 13th May 1926 | Box 168 \ 5 img066 | |
| Standardisation sheet for an ammeter by Elliott Bros, with remarks on standardising instrument dials and hands. | 31th May 1926 | Box 168 \ 5 img067 | |
| Query about standardizing the appearance of six car instrument dials and hands. | 31th May 1926 | Box 168 \ 5 img068 | |
| Requesting the completion of instructions to remove an Elliott ammeter for examination, with a Weston ammeter provided as a replacement. | 4th Jun 1926 | Box 168 \ 5 img069 | |
| Supplier trial for ammeters between Elliott Bros. and the Weston Company. | 25th Jun 1926 | Box 168 \ 5 img070 | |
| Cover letter for a standardisation sheet regarding an ammeter made by Elliott Bros. | 21th Jun 1926 | Box 168 \ 5 img071 | |
| Requesting a copy of a document concerning a standardisation sheet for an Elliott Bros. ammeter. | 5th Jul 1926 | Box 168 \ 5 img072 | |
| Standardisation of the Elliott ammeter and a proposal to conduct a 50-50 trial with the Weston ammeter. | 7th Jul 1926 | Box 168 \ 5 img073 | |
| Return of a Weston ammeter to its makers for a new glass fitting due to cracking. | 21th Jul 1926 | Box 168 \ 5 img074 | |
| Short memo regarding the standardisation of the Elliott Ammeter. | 24th Aug 1926 | Box 168 \ 5 img075 | |
| The standardisation of the Elliott Ammeter. | 25th Aug 1926 | Box 168 \ 5 img076 | |
| The fitting of Elliott Ammeters to 20 HP cars and retaining Weston Ammeters for the Phantom model. | 26th Aug 1926 | Box 168 \ 5 img077 | |
| Standardisation proposal for ammeters made by Messrs. Elliott Bros. | 27th May 1926 | Box 168 \ 5 img078 | |
| Chassis 12-EX after 6000 miles, detailing the performance of the Exide and P&R battery cells. | 19th Aug 1926 | Box 168 \ 5 img079 | |
| The instruction of Elliott ammeters for the 20 HP chassis and Weston ammeters for the 40/50 HP chassis. | 20th Aug 1926 | Box 168 \ 5 img080 | |
| The condition of chassis 12-EX after a 9000-mile test, focusing on electrical components. | 23th Aug 1926 | Box 168 \ 5 img081 | |
| Fitting of Elliott ammeters to 20 HP cars and continuing with Weston ammeters for the Phantom. | 1st Aug 1926 | Box 168 \ 5 img082 | |
| The standardization of chassis instrument board ammeters from different suppliers. | 30th Mar 1926 | Box 168 \ 5 img083 | |
| Confirming the satisfactory completion of a 10,000-mile test on a second Elliott ammeter on experimental chassis 12-MX in France. | 13th Sep 1926 | Box 168 \ 5 img084 | |
| Electrical experimental road test log sheet with mileage records. | 20th Oct 1926 | Box 168 \ 5 img085 | |
| Log sheet recording test mileage data and remarks on a component. | 8th May 1926 | Box 168 \ 5 img086 | |
| Log sheet tracking the mileage and usage details for an experimental Elliott Ammeter. | 8th May 1926 | Box 168 \ 5 img087 | |
| Mileage and test log for 'Elliott Camels, No 140998' from 1925-1926. | 25th Jun 1926 | Box 168 \ 5 img088 | |
| Requesting the return of a Weston ammeter, model 301, to its makers for repair. | 18th Nov 1926 | Box 168 \ 5 img089 | |
| Weston ammeter with broken glass being sent for repair. | 17th Dec 1926 | Box 168 \ 5 img090 | |
| Supply of ammeters from two firms. | 12th Jan 1927 | Box 168 \ 5 img091 | |
| Requesting the replacement of a faulty Elliott ammeter on chassis 12-EX. | 18th Jan 1927 | Box 168 \ 5 img092 | |
| The return of an Elliott ammeter for repair, with an attached assistant's report. | 26th Jan 1927 | Box 168 \ 5 img093 | |
| Instruction sheet form for work to be completed, with fields for order and customer details. | 4th Feb 1927 | Box 168 \ 5 img094 | |
| Letter regarding special tests for an Elliott Ammeter and attaching correspondence from Elliott Bros. | 4th Feb 1927 | Box 168 \ 5 img095 | |
| Letter from Elliott Brothers Ltd. concerning the examination of a miniature ammeter. | 1st Feb 1927 | Box 168 \ 5 img096 | |
| Test results for an Elliott Ammeter, the reasons for a filed sealing cup, and a proposed resolution. | 1st Feb 1927 | Box 168 \ 5 img097 | |
| The fitment and supply of 'Weston' and 'Elliott' Ammeters for the 20 HP and 40/50 HP chassis. | 7th Feb 1927 | Box 168 \ 5 img098 | |
| Sourcing and fitting of English and American ammeters to different chassis models. | 1st Feb 1927 | Box 168 \ 5 img099 | |
| From BJ to ROY regarding the fitting of English-made Ammeters. | 2nd Feb 1927 | Box 168 \ 5 img100 | |
| Reliability comparison of Weston and Elliott ammeters. | 8th Aug 1927 | Box 168 \ 5 img101 | |
| Correspondence regarding a faulty Elliott Ammeter, No. 140999. | 10th Feb 1927 | Box 168 \ 5 img102 | |
| The re-delivery and status of Elliott Ammeter No.140999. | 21th Feb 1927 | Box 168 \ 5 img103 | |
| Static charge build-up on the glass of an Elliott ammeter, causing erroneous needle deflections. | 2nd May 1927 | Box 168 \ 5 img104 | |
| Test Department complaint about an Elliott Ammeter, attributing the fault to static effect. | 9th May 1927 | Box 168 \ 5 img105 | |
| Visit to Elliott Bros' Works and a complaint from the Test Dept. about faulty ammeters. | 9th May 1927 | Box 168 \ 5 img107 | |
| Letter from Elliott Bros. regarding electrostatic effects on miniature ammeters and conductive glass. | 6th May 1927 | Box 168 \ 5 img108 | |
| Visit to Elliott Bros. to discuss improvements and quality issues with their ammeter. | 11th May 1927 | Box 168 \ 5 img109 | |
| Use of washers for thin and soft instrument dials supplied by Cambridge Instrument Co. | 11th May 1927 | Box 168 \ 5 img110 | |
| Investigation into the issue of sticking needles on Elliott Ammeters. | 27th May 1927 | Box 168 \ 5 img111 | |
| Electrostatic test report comparing a Weston Model 301 and an Alliott Type 'M.R.' instrument. | 16th May 1927 | Box 168 \ 5 img112 | |
| Test report comparing Weston and Elliott instruments under temperature and stray field conditions. | 26th May 1927 | Box 168 \ 5 img113 | |
| Letter from Ferranti Ltd. regarding a new range of electrical measuring instruments suitable for car dashboards. | 15th Jul 1927 | Box 168 \ 5 img114 | |
| Page 2 of a letter from Ferranti Limited regarding product pricing and sales support. | 11th Aug 1927 | Box 168 \ 5 img115 | |
| Letter from Ferranti Ltd. following up on an offer of electrical measuring instruments for dashboard use. | 11th Aug 1927 | Box 168 \ 5 img116 | |
| Correspondence regarding specifications for a Ferranti chassis ammeter sample. | 17th Aug 1927 | Box 168 \ 5 img117 | |
| Ferranti ammeter and transformer. | 19th Sep 1927 | Box 168 \ 5 img118 | |
| Instructions regarding a car's potential skidding on wet roads and a proposed solution for the instrument board. | 21th Sep 1927 | Box 168 \ 5 img119 | |
| Return of an unsuitable Ferranti ammeter and proposing a replacement. | 3rd Oct 1927 | Box 168 \ 5 img120 | |
| Suitability of a Ferranti ammeter for chassis use. | 23th Nov 1927 | Box 168 \ 5 img121 | |
| From PN to EFC regarding a faulty ammeter from Ferranti, Ltd. and seeking an opinion on their instruments. | 23th Nov 1927 | Box 168 \ 5 img122 | |
| Proposing to exclusively use English-made Weston and Elliott ammeters for the 40/50 HP and 20 HP chassis. | 6th Dec 1927 | Box 168 \ 5 img123 | |
| Ferranti ammeter, referencing other correspondence. | 9th Dec 1927 | Box 168 \ 5 img124 | |
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