| Description | Date | Identifier | |
| Blueprint showing three views of a tubular component with a flanged end and a U-bend. | 4th Sep 1937 | Box 140 \ 2 scan0038 | |
| Blueprint showing a cylindrical multi-tube component model with various views and dimensions. | 4th Sep 1937 | Box 140 \ 2 scan0039 | |
| Blueprint for a cylindrical component, possibly a damper, showing external, cross-sectional, and end views with dimensions. | 4th Sep 1937 | Box 140 \ 2 scan0040 | |
| Blueprint drawing of a Hydraulic Hand Pump with various section views. | 4th Sep 1937 | Box 140 \ 2 scan0041 | |
| Letter from S. Smith & Sons (Motor Accessories) Ltd to Mr. S.H. Grylls regarding a visit. | 6th Sep 1937 | Box 140 \ 2 scan0042 | |
| Standardisation of parts for the Phantom III, concerning hydraulic jacks and a D.W.S. pump to reduce cost. | 26th Apr 1937 | Box 140 \ 2 scan0043 | |
| Note on nil extra tool cost for production on the 26th Chassis in the 'D' Series. | 20th Sep 1935 | Box 140 \ 2 scan0044 | |
| Letter to Donald Sessions & Company Ltd. discussing proposed improvements to a new jack pump and rams for the Phantom III. | 7th Sep 1937 | Box 140 \ 2 scan0045 | |
| Letter from Donald Sessions & Company Ltd. concerning a new design jack pump and rams. | 9th Sep 1937 | Box 140 \ 2 scan0046 | |
| Letter to S. Smith & Sons regarding a payment dispute over a sample Jack system. | 13th Sep 1937 | Box 140 \ 2 scan0047 | |
| Letter from S. Smith & Sons regarding a financial dispute over a cancelled jacking system order. | 14th Sep 1937 | Box 140 \ 2 scan0048 | |
| Letter from S. Smith & Sons regarding Jackall enquiries and bulk jack business. | 14th Sep 1937 | Box 140 \ 2 scan0049 | |
| Reply from Mr. Nichols about paying for Smith Jacks, with the matter to be discussed at the Motor Exhibition. | 16th Sep 1937 | Box 140 \ 2 scan0050 | |
| Assembly drawing for a 10 1/2 inch stroke double extension jack. | 17th Apr 1935 | Box 140 \ 2 scan0051 | |
| Letter from Automotive Products Company apologising for a delayed reply and reassigning the query. | 5th Oct 1937 | Box 140 \ 2 scan0052 | |
| Letter concerning a delay in providing a hand pump for testing due to issues with control valves. | 5th Oct 1937 | Box 140 \ 2 scan0053 | |
| Standardisation of parts for a Cheaper Hydraulic Jack Tank on the Phantom III. | 18th Sep 1937 | Box 140 \ 2 scan0054 | |
| Proposal regarding a production change for the 'D' Series Chassis with no extra tool cost. | 26th Sep 1923 | Box 140 \ 2 scan0055 | |
| Letter from Donald Sessions & Company Ltd. inviting an individual to view an electrically operated hydraulic jacking system at the Motor Show. | 13th Oct 1937 | Box 140 \ 2 scan0056 | |
| Letter to a supplier concerning a bulk order for hydraulic jacks for the Phantom III and 25/30 models. | 18th Oct 1937 | Box 140 \ 2 scan0057 | |
| Letter from S. Smith & Sons acknowledging receipt of correspondence and advising that it will be actioned upon a colleague's return from the Motor Exhibition. | 20th Oct 1937 | Box 140 \ 2 scan0058 | |
| Letter from S. Smith & Sons regarding a settlement and the fitting of experimental hydraulic jacks. | 25th Oct 1937 | Box 140 \ 2 scan0059 | |
| Letter to Donald Sessions & Co. requesting a portable hydraulic jack for test purposes on a Bentley, including a sketch. | 4th Nov 1937 | Box 140 \ 2 scan0060 | |
| Order for 6 sets of Jack Pump and Piping parts for the Wraith III chassis. | 4th Nov 1937 | Box 140 \ 2 scan0061 | |
| Letter from Donald Sessions & Co. Ltd. regarding a custom hydraulic jack for Bentley cars. | 5th Nov 1937 | Box 140 \ 2 scan0062 | |
| Abandonment of a patent application for a jack for independent wheel springing due to a conflicting patent. | 10th Nov 1937 | Box 140 \ 2 scan0063 | |
| Jacking tank capacities for the Ph.III and Wraith models. | 23th Nov 1937 | Box 140 \ 2 scan0064 | |
| The change of the oil tank for the Wraith III hydraulic jacks to a modified standard Sessions tank. | 24th Nov 1937 | Box 140 \ 2 scan0065 | |
| Letter to D. Sessions & Co. Ltd. about returning jack parts and pumps for modification. | 24th Nov 1937 | Box 140 \ 2 scan0066 | |
| Transfer of unpaid hydraulic jacks and pumps to Sessions at Cricklewood. | 24th Nov 1937 | Box 140 \ 2 scan0067 | |
| Letter from Donald Sessions & Company Ltd. regarding jacking parts, a Portable Hydraulic Jack, and permanently attached jacks for the 25/30 HP Rolls. | 25th Nov 1937 | Box 140 \ 2 scan0068 | |
| Invoice from Donald Sessions & Co. Ltd for a D.W.S. Portable Hydraulic Jack. | 4th Dec 1937 | Box 140 \ 2 scan0069 | |
| Invoice from Donald Sessions & Co. Ltd. for a Hydraulic Jack for a Bentley Car, seeking authorization for payment. | 4th Dec 1937 | Box 140 \ 2 scan0070 | |
| Letter to Donald Sessions & Co. Ltd. requesting a price for Bentley Jacks in production quantities. | 6th Dec 1937 | Box 140 \ 2 scan0071 | |
| Requesting an official order for a D.W.S. Portable Hydraulic Jack and confirming its receipt. | 7th Dec 1937 | Box 140 \ 2 scan0072 | |
| Letter to Messrs Donald Sessions & Co. Ltd. requesting findings on the jack tank for the 25/30 chassis. | 8th Dec 1937 | Box 140 \ 2 scan0073 | |
| Quotation from Donald Sessions & Company Ltd. for 500 D.W.S. Hydraulic Portable Jacks. | 8th Dec 1937 | Box 140 \ 2 scan0074 | |
| Request for a covering order for a DWS Hydraulic Jack for use on a Bentley, which has already been received. | 10th Dec 1937 | Box 140 \ 2 scan0075 | |
| Query regarding an invoice for a third D.W.S. Portable Hydraulic Jack for a Bentley car. | 24th Dec 1937 | Box 140 \ 2 scan0076 | |
| Responding to a query about the availability of a specific portable hydraulic jack. | 30th Dec 1937 | Box 140 \ 2 scan0077 | |
| Laboratory report comparing the composition of Castraulic and D.W.S. brake fluids. | 17th Dec 1937 | Box 140 \ 2 scan0078 | |
| Delivery and payment discrepancy for three Portable Hydraulic Jacks. | 13th Jan 1938 | Box 140 \ 2 scan0079 | |
| Letter from Donald Sessions & Co. Ltd. clarifying the delivery of four Portable Hydraulic Jacks. | 11th Jan 1938 | Box 140 \ 2 scan0080 | |
| Confirming the quantity and lift specifications for three Sessions Portable Hydraulic Jacks. | 15th Jan 1937 | Box 140 \ 2 scan0081 | |
| Recommending the omission of guards on the hydraulic jacks for the Wraith model. | 25th Jan 1938 | Box 140 \ 2 scan0082 | |
| Confirming the removal of a stoneguard from a N.S.R. jack on a 25/30 HP model. | 10th Feb 1938 | Box 140 \ 2 scan0083 | |
| Confirming a telegram regarding a damaged rubber pipe for the rear hydraulic jacks on a 25/30 HP model. | 14th Feb 1938 | Box 140 \ 2 scan0084 | |
| Letter concerning a faulty Bentley jack, requesting a design modification and a price negotiation. | 8th Mar 1938 | Box 140 \ 2 scan0085 | |
| The despatch of a D.W.S. Hydraulic jack returned for repair. | 8th Mar 1938 | Box 140 \ 2 scan0086 | |
| Letter from Donald Sessions & Co Ltd. regarding leaking experimental hydraulic jacks for Bentley cars. | 9th Mar 1938 | Box 140 \ 2 scan0087 | |
| Letter regarding a jack inadvertently dispatched to the wrong address. | 28th Mar 1938 | Box 140 \ 2 scan0088 | |
| Letter from Donald Sessions & Co. regarding the delayed return of a repaired Bentley portable hydraulic jack. | 1st Apr 1938 | Box 140 \ 2 scan0089 | |
| Letter from Donald Sessions & Co. Ltd. concerning the failure and repair of an experimental portable hydraulic jack. | 5th Apr 1938 | Box 140 \ 2 scan0090 | |
| Letter to Messrs. Donald Sessions & Company, Ltd. advising of a delay due to the illness of Mr. Grylls. | 13th Apr 1938 | Box 140 \ 2 scan0091 | |
| The settlement of an outstanding account for parts. | 27th Apr 1938 | Box 140 \ 2 scan0092 | |
| S. Smith & Sons absorbing competitors and forming a new subsidiary, 'SMITH'S JACKING SYSTEMS LIMITED'. | 11th May 1938 | Box 140 \ 2 scan0093 | |
| Letter regarding a customer's faulty car jack on a Phantom III and suggesting two alternative apologies. | 10th Jun 1938 | Box 140 \ 2 scan0094 | |
| Letter to Donald Sessions & Co. Ltd. regarding a leaking hydraulic jack and insecure jack brackets. | 10th Jun 1938 | Box 140 \ 2 scan0095 | |
| Letter from S. Smith & Sons regarding faulty jacks on a Phantom III and issues with a portable D.W.S. design. | 13th Jun 1938 | Box 140 \ 2 scan0096 | |
| Letter from Donald Sessions & Co Ltd concerning a faulty portable hydraulic jack. | 13th Jun 1938 | Box 140 \ 2 scan0097 | |
| Letter from Donald Sessions & Company Ltd. regarding failures with portable jacks and a discussion on permanently fitted hydraulic jacking systems for Bentley cars. | 13th Jun 1938 | Box 140 \ 2 scan0098 | |
| Jack failure on a car, its subsequent testing, and a query about lack of oil as the cause. | 14th Jun 1938 | Box 140 \ 2 scan0099 | |
| Letter from Donald Sessions & Company Ltd. regarding a failed portable jack and discussing future hydraulic jack designs. | 16th Jun 1938 | Box 140 \ 2 scan0100 | |
| Reported jack failure on chassis 3-AZ-68, attributing it to human error. | 16th Jun 1938 | Box 140 \ 2 scan0101 | |
| Letter concerning a delayed portable hydraulic jack and clarifying a supposed failure of another jack was due to user error. | 20th Jun 1938 | Box 140 \ 2 scan0102 | |
| Letter from Donald Sessions & Company Ltd. proposing a meeting at the works. | 20th Jun 1938 | Box 140 \ 2 scan0103 | |
| Letter from Donald Sessions & Company Ltd. proposing a meeting to discuss jacking matters. | 21th Jun 1938 | Box 140 \ 2 scan0104 | |
| Letter from Donald Sessions & Co. Ltd. discussing the incorporation of a portable hydraulic jack on a proposed new car. | 27th Jun 1938 | Box 140 \ 2 scan0105 | |
| Letter from a supplier regarding permanent jacking systems, a failed portable jack, and a new electric power unit. | 27th Jun 1938 | Box 140 \ 2 scan0106 | |
| The lift requirements for D.W.S. Hydraulic Portable Jacks on Bentley models. | 1st Jul 1938 | Box 140 \ 2 scan0107 | |
| Modification to the rear jack brackets on the Wraith model to correct the operating angle. | 6th Jul 1938 | Box 140 \ 2 scan0108 | |
| Letter from Donald Sessions & Company Ltd. regarding the repair of a Portable Hydraulic Jack. | 21th Jul 1938 | Box 140 \ 2 scan0109 | |
| Letter announcing the formation of a new subsidiary company, Smith's Jacking Systems, for the supply of jacks. | 26th Jul 1938 | Box 140 \ 2 scan0110 | |
| Letter announcing the formation of a new subsidiary company, Smith's Jacking Systems. | 26th Jul 1938 | Box 140 \ 2 scan0111 | |
| Letter to Donald Sessions & Co. Ltd. about a new bracket for a portable hydraulic jack and requesting a further quotation. | 8th Aug 1938 | Box 140 \ 2 scan0112 | |
| Letter from Smith's Jacking Systems regarding a quotation for a hydraulic jack bracket for Bentley Cars. | 9th Aug 1938 | Box 140 \ 2 scan0113 | |
| Letter from Smith's Jacking Systems Ltd. regarding a new electric power unit for Jackall jacks and its potential adoption. | 30th Sep 1938 | Box 140 \ 2 scan0114 | |
| Letter to Smith's Jacking Systems regarding changing from hand-operated to an electric pump. | 4th Oct 1938 | Box 140 \ 2 scan0115 | |
| Jacking scheme for the Bentley 111, rejecting axle jacks due to increased unsprung weight. | 27th Oct 1938 | Box 140 \ 2 scan0116 | |
| Letter to Messrs. Smith's Jacking Systems Ltd. requesting a hydraulic jack with a specific lift. | 7th Nov 1938 | Box 140 \ 2 scan0117 | |
| Letter from Smith's Jacking Systems Ltd. confirming they are proceeding with a requested Hydrolift Jack. | 8th Nov 1938 | Box 140 \ 2 scan0118 | |
| Return of a Smith Hydrolift Jack for repairs to Smiths Jacking Systems Ltd. | 11th Nov 1938 | Box 140 \ 2 scan0119 | |
| Letter to Smith's Jacking Systems Ltd. requesting a bracket be included with a Hydrolift jack. | 11th Nov 1938 | Box 140 \ 2 scan0120 | |
| Letter to Smith's Jacking Systems Ltd. regarding the return of a leaking portable jack. | 11th Nov 1938 | Box 140 \ 2 scan0121 | |
| Letter from Smith's Jacking Systems Ltd. regarding a delay in supplying a bracket for a Hydrolift jack. | 14th Nov 1938 | Box 140 \ 2 scan0122 | |
| Layout and specifications of portable hydraulic jacks for the Bentley 111 model. | 15th Nov 1938 | Box 140 \ 2 scan0123 | |
| Letter from Smith's Jacking Systems Ltd. regarding a leaking Hydrolift jack after testing on a Bentley. | 23th Nov 1938 | Box 140 \ 2 scan0124 | |
| Page 2 of a letter from Smith's Jacking Systems Ltd. regarding a product complaint. | 23th Nov 1938 | Box 140 \ 2 scan0125 | |
| Typed memo arranging a meeting in Derby to discuss pump troubles. | 28th Nov 1938 | Box 140 \ 2 scan0126 | |
| Letter from Smith's Jacking Systems Ltd. to Mr. Grylls arranging a meeting to discuss pump troubles. | 29th Nov 1938 | Box 140 \ 2 scan0127 | |
| Fault with the securing studs on hydraulic jacks for the Wraith model, proposing a solution. | 2nd Dec 1938 | Box 140 \ 2 scan0128 | |
| Letter from Smith's Jacking Systems Ltd. regarding stripped jack pump studs and their standard Hydrolift product. | 5th Dec 1938 | Box 140 \ 2 scan0129 | |
| Leaking release valves on D.W.S. jack pumps. | 12th Dec 1938 | Box 140 \ 2 scan0130 | |
| Letter to Smith's Jacking Systems Ltd. regarding faulty pumps on jacking systems where cars slowly sink. | 16th Dec 1938 | Box 140 \ 2 scan0131 | |
| Letter from Smith's Jacking Systems Ltd. regarding three faulty jack pumps that do not hold pressure. | 20th Dec 1938 | Box 140 \ 2 scan0132 | |
| Letter to Smith's Jacking Systems regarding pumps sent for dismantling and chasing the return of a portable jack. | 22th Dec 1938 | Box 140 \ 2 scan0133 | |
| Order for three portable hydraulic jacks from Smith's Jacking Systems. | 28th Dec 1938 | Box 140 \ 2 scan0134 | |
| Letter to Messrs. Smith's Jacking Systems Ltd. regarding an order for portable jacks and a bracket drawing. | 28th Dec 1938 | Box 140 \ 2 scan0135 | |
| Letter from Smith's Jacking Systems Ltd. regarding faulty pumps and a Bentley Hydrolift jack. | 30th Dec 1938 | Box 140 \ 2 scan0136 | |
| Letter from Smith's Jacking Systems Ltd. regarding an order for Hydrolift jacks and expensive special brackets for Bentley cars. | 30th Dec 1938 | Box 140 \ 2 scan0137 | |
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