| Description | Date | Identifier | |
| Letter from S. Smith & Sons regarding a new, lighter aluminium bracket design for fitting jacks to the Phantom II. | 6th Jul 1934 | Box 139 \ 2 scan0106 | |
| Letter from S. Smith & Sons regarding the design of front brackets for Jackall Jacks on the Phantom II Chassis. | 16th Jul 1934 | Box 139 \ 2 scan0107 | |
| Letter to S. Smith & Sons regarding feedback on 'Jackall Jacks', including toe-in, redesigns, and operating handle improvements. | 18th Jul 1934 | Box 139 \ 2 scan0108 | |
| Letter from Dunlop Rubber Co. Ltd. regarding a complaint and proposed modification for dome type jacks on Bentley chassis. | 19th Jul 1934 | Box 139 \ 2 scan0109 | |
| Letter from S. Smith & Sons regarding the redesign of brackets for Jackall Jacks. | 20th Jul 1934 | Box 139 \ 2 scan0110 | |
| Communication regarding a customer complaint about a rattling jack on a Bentley Chassis and referring the matter to Dunlop Co. | 24th Jul 1934 | Box 139 \ 2 scan0111 | |
| Suggesting the adoption of the Dunlop Co. method for preventing pinion rattle in Bentley Jacks. | 26th Jul 1934 | Box 139 \ 2 scan0112 | |
| Design and implementation of built-in jacking systems for cars. | 30th Jul 1934 | Box 139 \ 2 scan0113 | |
| Proposed jacking scheme and rear suspension modifications for patent consideration. | 30th Jul 1934 | Box 139 \ 2 scan0114 | |
| Letter to S. Smith & Sons inquiring about the supply and fitting of 'Jackall' jacking systems for a 20/25 HP chassis. | 2nd Aug 1934 | Box 139 \ 2 scan0115 | |
| Test report on the 'Jackall' jacking system fitted to car 20.EX. | 2nd Aug 1934 | Box 139 \ 2 scan0116 | |
| Letter to Messrs. Smith & Sons Ltd. regarding fitting Jackall Jacks to a 20/25 HP Chassis. | 7th Aug 1934 | Box 139 \ 2 scan0117 | |
| Fitting of Jackall Jacks to a chassis. | 7th Aug 1934 | Box 139 \ 2 scan0118 | |
| Letter to Smith & Sons Ltd. regarding fitting Jackall Jacks to a 20/25 HP Chassis. | 7th Aug 1934 | Box 139 \ 2 scan0119 | |
| Development and testing of jacking systems for H.R. cars. | 8th Aug 1934 | Box 139 \ 2 scan0120 | |
| Letter from S. Smith & Sons regarding the installation of 'Jackalls' on a Bentley and a Phantom II. | 6th Sep 1934 | Box 139 \ 2 scan0121 | |
| Letter to S. Smith & Sons regarding the fitting of 'Jackalls' to a Bentley chassis and Ph.II Jacks. | 13th Sep 1934 | Box 139 \ 2 scan0122 | |
| Request to fit standard rear axle spring clips and pads to car 19-G-IV to enable fitting of standard D.W.S. Jacks. | 19th Sep 1934 | Box 139 \ 2 scan0123 | |
| Letter to S. Smith & Sons arranging the installation of a 'Jackalls' jacking system on a Bentley chassis. | 21th Sep 1934 | Box 139 \ 2 scan0124 | |
| Letter to Donald Sessions & Co. Ltd. regarding the collapse of a supplied jack for a 20/25 HP model. | 24th Sep 1934 | Box 139 \ 2 scan0125 | |
| Letter to S. Smith & Sons regarding the fitting of 'Jackalls' to car 5-B-IV. | 26th Sep 1934 | Box 139 \ 2 scan0126 | |
| Letter from Donald Sessions & Company Ltd acknowledging a letter and arranging the replacement of a jack. | 26th Sep 1934 | Box 139 \ 2 scan0127 | |
| Requesting an official order be issued to the D.W.S. Co. for two sets of Jacks. | 26th Sep 1934 | Box 139 \ 2 scan0128 | |
| Request to fit brackets for a 'Jackall' Jacking system to car 22-EX. | 27th Sep 1934 | Box 139 \ 2 scan0129 | |
| Requesting an order to S. Smith & Sons for fitting hydraulic jacks to chassis GZU-24. | 27th Sep 1934 | Box 139 \ 2 scan0130 | |
| Request to design and manufacture a pair of 20/25 D.W.S. Front Jack Brackets for testing purposes. | 1st Oct 1934 | Box 139 \ 2 scan0131 | |
| Letter to Donald Sessions & Co. Ltd. arranging a visit to test new 20/25 HP front jack brackets. | 3rd Oct 1934 | Box 139 \ 2 scan0132 | |
| Cancelling a request to fit 'Jackall' Jack brackets to 27-EX, reassigning the fitment to 28-EX. | 4th Oct 1934 | Box 139 \ 2 scan0133 | |
| Request to fit a modified set of D.W.S. Jacks to 18-G-IV for standardisation. | 15th Oct 1934 | Box 139 \ 2 scan0134 | |
| The testing of modified D.W.S. Jacks, detailing improvements over the standard type. | 24th Oct 1934 | Box 139 \ 2 scan0135 | |
| Testing modified D.W.S. jacks, detailing improvements and issues with brackets for the 20/25 model. | 24th Oct 1934 | Box 139 \ 2 scan0136 | |
| Fitting of a pump mechanism for Jackalls jacks on an Experimental Bentley Saloon, chassis 5B4. | 25th Oct 1934 | Box 139 \ 2 scan0137 | |
| Cancelling the fitting of modified D.W.S. Jacks to two vehicles and reassigning them to another. | 29th Oct 1934 | Box 139 \ 2 scan0138 | |
| Letter concerning the fitting of a Jackall Pump to chassis 5B4 and requesting related drawings. | 31th Oct 1934 | Box 139 \ 2 scan0139 | |
| Letter to S. Smith & Sons arranging the installation of 'Jackalls' on a Phantom II car. | 6th Nov 1934 | Box 139 \ 2 scan0140 | |
| Letter to Donald Sessions & Co. Ltd. regarding testing and standardisation of 20/25 Front Jack Brackets and 40/50 HP Jacks. | 6th Nov 1934 | Box 139 \ 2 scan0141 | |
| Letter confirming the dispatch of a fitter to install two-stage front jacks on a Phantom II car. | 7th Nov 1934 | Box 139 \ 2 scan0142 | |
| Letter to S. Smith & Sons Ltd. regarding the fitting of a 'Jackall' pressure pump and jacks. | 9th Nov 1934 | Box 139 \ 2 scan0143 | |
| Comparison of the Universal 'Scissor' Type Jack and the Dunlop Standard Bentley Jack. | 9th Nov 1934 | Box 139 \ 2 scan0144 | |
| Table showing the number of turns required to raise a Universal Jack for each inch of vertical increase. | 9th Nov 1934 | Box 139 \ 2 scan0145 | |
| Secret memorandum discussing the selection of jacks for the 'Spectre' chassis. | 10th Nov 1934 | Box 139 \ 2 scan0146 | |
| Letter to The Adamant Engineering Co. Ltd. comparing a Dunlop jack with screw and scissors type jacks. | 12th Nov 1934 | Box 139 \ 2 scan0147 | |
| Letter from Adamant Engineering Company acknowledging a disappointing test report on a Jack. | 13th Nov 1934 | Box 139 \ 2 scan0148 | |
| Incorporation of hydraulic jacks on the Spectre's front wheel suspension. | 14th Nov 1934 | Box 139 \ 2 scan0149 | |
| Telegram regarding the availability of a Bentley car for fitting Jackall jacks. | 16th Nov 1934 | Box 139 \ 2 scan0150 | |
| Letter from S. Smith & Sons concerning the installation of Jackalls on a Bentley and experimental double lift jacks for a 40/50 chassis. | 16th Nov 1934 | Box 139 \ 2 scan0151 | |
| Letter concerning the design and supply of modified Jack Brackets for the 20/25 HP Chassis. | 20th Nov 1934 | Box 139 \ 2 scan0152 | |
| Page 2 of a letter regarding the standardisation of modified jacks for 40/50 HP and 20/25 HP models. | 20th Nov 1934 | Box 139 \ 2 scan0153 | |
| Letter concerning the installation of 'Jackalls' on a Bentley car, detailing necessary bracket modifications and slow jack return speed. | 21th Nov 1934 | Box 139 \ 2 scan0154 | |
| The initial satisfactory testing of 2-stage Jacks fitted to a Ph.II, with further testing planned. | 21th Nov 1934 | Box 139 \ 2 scan0155 | |
| Letter to D. Sessions & Co. Ltd. cancelling the ban on fitting D.W.S. jacks to Bentley cars. | 21th Nov 1934 | Box 139 \ 2 scan0156 | |
| Letter from Adamant Engineering Company inquiring about a 'Jack' sent for testing which has not been returned. | 21th Nov 1934 | Box 139 \ 2 scan0157 | |
| The testing and implementation of new, lightened D.W.S. Jacks for 40/50 HP and 20/25 HP models. | 23th Nov 1934 | Box 139 \ 2 scan0158 | |
| Price quotation for a new 20/25 HP front bracket and fitting instructions for front jacks. | 23th Nov 1934 | Box 139 \ 2 scan0159 | |
| Letter to Adamant Engineering Co. Ltd. confirming the dispatch of a Jack & Handle. | 23th Nov 1934 | Box 139 \ 2 scan0160 | |
| Letter to S. Smith & Co. regarding a fractured N/S rear Jack Bracket and a potential design fault on the O/S rear bracket. | 26th Nov 1934 | Box 139 \ 2 scan0161 | |
| Page two of a letter regarding the decision to fit brackets for jacks onto a car in the fitting shop. | 26th Nov 1934 | Box 139 \ 2 scan0162 | |
| Arranging the despatch of a failed hydraulic jack bracket for replacement. | 27th Nov 1934 | Box 139 \ 2 scan0163 | |
| Correspondence regarding the testing and fitting of Smith's hydraulic jacks to a 3 1/2 Litre chassis. | 26th Nov 1934 | Box 139 \ 2 scan0164 | |
| Instructions for fitting modified front brackets for hydraulic jacks on chassis 5-B-IV. | 27th Nov 1934 | Box 139 \ 2 scan0165 | |
| The layout of hydraulic jacks on a 5-B-IV model. | 28th Nov 1934 | Box 139 \ 2 scan0166 | |
| Letter to Messrs. Smith & Sons regarding modified and fractured brackets. | 28th Nov 1934 | Box 139 \ 2 scan0167 | |
| Letter from S. Smith & Sons regarding a fractured rear jack bracket. | 28th Nov 1934 | Box 139 \ 2 scan0168 | |
| Letter from S. Smith & Sons suggesting a fitter visit to investigate O/S brackets and ascertain the nature of tests. | 28th Nov 1934 | Box 139 \ 2 scan0169 | |
| Letter to S. Smith & Sons regarding tests carried out on Jackalls fitted to vehicle S-B-IV. | 1st Dec 1934 | Box 139 \ 2 scan0170 | |
| Letter concerning the preparation of modified brackets and scheduling an inspection. | 1st Dec 1934 | Box 139 \ 2 scan0171 | |
| Letter from S. Smith & Sons confirming a fitting engineer's visit for a Bentley car. | 13th Dec 1934 | Box 139 \ 2 scan0172 | |
| Letter from S. Smith & Sons concerning fitting issues with jacks and brackets on a 5-B-4 chassis. | 20th Dec 1934 | Box 139 \ 2 scan0173 | |
| Letter from S. Smith & Sons responding to criticism about copper pipe fitting arrangements on Jackall Fittings. | 27th Dec 1934 | Box 139 \ 2 scan0174 | |
| Continuation letter from S. Smith & Sons regarding the fitting of a copper tube and clamps on a chassis. | 27th Dec 1934 | Box 139 \ 2 scan0175 | |
| Follow-up memo regarding the experimental installation of four-wheel hydraulic jacks on a 3 1/2 Litre chassis. | 28th Dec 1934 | Box 139 \ 2 scan0176 | |
| The ongoing 10,000-mile road test of Smith's Hydraulic jacks. | 31th Dec 1934 | Box 139 \ 2 scan0177 | |
| Authorizing payment for invoices in connection with Smith's Jacks. | 5th Jan 1935 | Box 139 \ 2 scan0178 | |
| Letter to S. Smith & Sons regarding a faulty release valve on a 'Jackalls' jacking system. | 9th Jan 1935 | Box 139 \ 2 scan0179 | |
| Official order for 'Jackall' Hydraulic Jack Fluid. | 9th Jan 1935 | Box 139 \ 2 scan0180 | |
| Letter from S. Smith & Sons regarding the fitting and weight of Jackall equipment on a Bentley. | 9th Jan 1935 | Box 139 \ 2 scan0181 | |
| Letter from S. Smith & Sons regarding the design and material considerations for vehicle jacks and fittings. | 9th Jan 1935 | Box 139 \ 2 scan0182 | |
| Letter from S. Smith & Sons regarding a faulty Jackalls Control Box and a subsequent visit by their Fitter. | 10th Jan 1935 | Box 139 \ 2 scan0183 | |
| Letter to S. Smith & Sons Ltd. regarding the changeover of a pump and pipe lines, asking for the cause of the original pump's failure. | 12th Jan 1935 | Box 139 \ 2 scan0184 | |
| Letter to S. Smith & Sons regarding the difficulty of arranging an examination of jacks on a busy experimental car. | 14th Jan 1935 | Box 139 \ 2 scan0185 | |
| Request for an update on the efficiency and development of 2-stage hydraulic jacks. | 15th Jan 1935 | Box 139 \ 2 scan0186 | |
| The performance and criticism of hydraulic jacks on chassis GZU-24. | 16th Jan 1935 | Box 139 \ 2 scan0187 | |
| Correspondence from S. Smith & Sons about modifying pipe leads on Chassis 5-B-IV. | 16th Jan 1935 | Box 139 \ 2 scan0188 | |
| Braking issue when using hydraulic jacks on chassis GZU-24. | 21th Jan 1935 | Box 139 \ 2 scan0189 | |
| Letter from S. Smith & Sons to Mr. Cowen concerning the safety and performance of the Jackall system. | 17th Jan 1935 | Box 139 \ 2 scan0190 | |
| Satisfactory performance and dimensions of 2-stage hydraulic jacks. | 17th Jan 1935 | Box 139 \ 2 scan0191 | |
| Testing of Jackall hydraulic jacks on chassis GZU-24. | 22th Jan 1935 | Box 139 \ 2 scan0192 | |
| The performance and testing of hydraulic jacks on chassis GZU-24. | 23th Jan 1935 | Box 139 \ 2 scan0193 | |
| Follow-up memo requesting information on the performance and behaviour of hydraulic jacks under test. | 31th Jan 1935 | Box 139 \ 2 scan0194 | |
| Air lock issue in the hydraulic jacking system after a period of disuse. | 5th Feb 1935 | Box 139 \ 2 scan0195 | |
| Internal memorandum detailing the weight reduction of a new lightened type of jack compared to the old standard. | 5th Feb 1935 | Box 139 \ 2 scan0196 | |
| Query regarding the supply and charge for two tins of 'Jackall' Hydraulic Jack Fluid. | 6th Feb 1935 | Box 139 \ 2 scan0197 | |
| Confirming the receipt of two tins of Jackall fluid to be paid for, with attached instructions. | 8th Feb 1935 | Box 139 \ 2 scan0198 | |
| Requesting to book in a tin of 'Jackall' Hydraulic Jack Fluid. | 8th Feb 1935 | Box 139 \ 2 scan0199 | |
| To Mr. Crawford at Lillie Hall regarding the arrangement for an inspection of damaged D.W.S. Jacks on car 21-G-IV. | 15th Feb 1935 | Box 139 \ 2 scan0200 | |
| Letter to Dunlop Rubber Co. Ltd. about reducing the weight of the jack supplied for Bentley cars. | 16th Feb 1935 | Box 139 \ 2 scan0201 | |
| Requesting authorisation for payment of two invoices from S. Smith & Sons for Jacks fitted at Derby. | 19th Feb 1935 | Box 139 \ 2 scan0202 | |
| Letter from Dunlop Rubber Co. Ltd. regarding the loan of a competitive Jack for inspection. | 19th Feb 1935 | Box 139 \ 2 scan0203 | |
| Correspondence with The Dunlop Rubber Co. Ltd. regarding the loan of a jack for trial and inspection. | 22th Feb 1935 | Box 139 \ 2 scan0204 | |
| Confirming payment instructions have been passed on for invoices from S. Smith & Sons regarding Jackall Jacks. | 22th Feb 1935 | Box 139 \ 2 scan0205 | |
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