| Description | Date | Identifier | |
| Design and material specifications for an Anti Roll Rod for the Wraith III front suspension. | 24th Dec 1937 | Box 9 \ 5 05-page151 | |
| Comparison table of rod and lever arm specifications for Oldsmobile and Wraith III models. | 29th Dec 1937 | Box 9 \ 5 05-page152 | |
| Letter to a supplier regarding the receipt of springs, a missing lubricator type, and an inquiry about the remaining order. | 29th Dec 1937 | Box 9 \ 5 05-page153 | |
| Letter from Jonas Woodhead & Sons, Ltd. confirming details and poundage of laminated springs for drawing FW.1477. | 30th Dec 1937 | Box 9 \ 5 05-page154 | |
| Continuation sheet of a letter from Jonas Woodhead & Sons Ltd. | 31th Dec 1937 | Box 9 \ 5 05-page155 | |
| Letter from Jonas Woodhead & Sons Ltd. regarding the supply and specifications of springs for drawing FW.1477. | 31th Dec 1937 | Box 9 \ 5 05-page156 | |
| Request for drawings of larger front suspension shock damper bellows units for Wraith and Phantom III cars. | 1st Jan 1938 | Box 9 \ 5 05-page157 | |
| Fitting of an Oldsmobile front roll rod and removal of the rear roll rod on a 24.G.VI Wraith Car. | 3rd Jan 1938 | Box 9 \ 5 05-page158 | |
| The vulcanising failure of a bottom rubber buffer on a Wraith III front suspension. | 4th Jan 1938 | Box 9 \ 5 05-page159 | |
| Letter from Jonas Woodhead & Sons, Ltd. regarding the dispatch of three pairs of 25/30 HP rear springs. | 4th Jan 1938 | Box 9 \ 5 05-page160 | |
| Comparison of cost and manufacturing processes for Wraith and Bentley road springs from suppliers Firths and Woodheads. | 10th Jan 1938 | Box 9 \ 5 05-page161 | |
| Discussion and recommendation regarding the pricing of ground and plated springs for Wraith and Bentley models. | 10th Jan 1938 | Box 9 \ 5 05-page162 | |
| Wraith Woodhead springs (FW.1477) not being polished as per the drawing and arranging for their collection and completion. | 10th Jan 1938 | Box 9 \ 5 05-page163 | |
| Apology letter from a supplier regarding unfinished springs and arranging their collection and completion. | 10th Jan 1938 | Box 9 \ 5 05-page164 | |
| Internal request for a covering order to Firths for one pair of Wraith springs. | 15th Jan 1938 | Box 9 \ 5 05-page165 | |
| Letter requesting the production of one pair of 25 HP springs. | 15th Jan 1938 | Box 9 \ 5 05-page166 | |
| Notification regarding the removal of an Oldsmobile front roll rod from a 24.G.VI Wraith car. | 18th Jan 1938 | Box 9 \ 5 05-page167 | |
| Letter from Thos Firth & John Brown Ltd confirming an order for a pair of ground and plated springs. | 18th Jan 1938 | Box 9 \ 5 05-page168 | |
| Modification to the Wraith III front suspension, specifically for the shock damper's oil filler. | 24th Jan 1938 | Box 9 \ 5 05-page169 | |
| Request for drawings of initial deflection springs to reproduce the Packard spring deflection on a Wraith. | 27th Jan 1938 | Box 9 \ 5 05-page170 | |
| Blueprints for a new Bellows for the Shock Damper on the Wraith III, which replaces part GW.736. | 2nd Feb 1938 | Box 9 \ 5 05-page171 | |
| New scheme for the Wraith III front suspension, specifically the anti-roll rod bracket. | 9th Feb 1938 | Box 9 \ 5 05-page172 | |
| Scheme for modifying the Wraith III front suspension top triangle lever buffer mounting and buffer. | 9th Feb 1938 | Box 9 \ 5 05-page173 | |
| Letter to Firestone Tyre & Rubber Co. Ltd. regarding an incorrect sample buffer and arranging a factory visit. | 22th Feb 1938 | Box 9 \ 5 05-page174 | |
| Design schemes for the Wraith III front suspension, buffers, and anti-roll bars. | 22th Feb 1938 | Box 9 \ 5 05-page175 | |
| Request to issue a covering order to E.H.Pickford & Co.Ltd. for 8 Humber front suspension buffers ordered by telephone. | 23th Feb 1938 | Box 9 \ 5 05-page176 | |
| Message postponing a visit to Maylin at Firestone, Brentford. | 28th Feb 1938 | Box 9 \ 5 05-page177 | |
| The decision to use and test Firestone type buffers for the front suspension on the Wraith Bumper Chassis. | 28th Feb 1938 | Box 9 \ 5 05-page178 | |
| Covering order for 12 Humber type front suspension buffers. | 2nd Mar 1938 | Box 9 \ 5 05-page179 | |
| Letter from Firestone regarding samples of engine mountings and a price enquiry for a bumper. | 7th Mar 1938 | Box 9 \ 5 05-page180 | |
| Sourcing and comparative cost of steel castings for the Wraith model from two different suppliers. | 8th Mar 1938 | Box 9 \ 5 05-page181 | |
| Splitting an order for Wraith steel castings between suppliers to ensure quality and delivery. | 9th Mar 1938 | Box 9 \ 5 05-page182 | |
| Letter to Firestone Tyre & Rubber Co. Ltd. regarding flat plate engine mountings and the testing of a Humber buffer. | 9th Mar 1938 | Box 9 \ 5 05-page183 | |
| Letter from Firestone Tyre & Rubber Company Ltd. quoting a price for rebound bumpers. | 10th Mar 1938 | Box 9 \ 5 05-page184 | |
| Letter from The Daimler Co. Ltd. providing a price schedule for steel castings and suggesting a follow-up meeting. | 11th Mar 1938 | Box 9 \ 5 05-page185 | |
| Production of a square-ended versus serrated-ended rear stabiliser roll rod for the Wraith III. | 15th Mar 1938 | Box 9 \ 5 05-page186 | |
| Letter to the English Steel Corporation requesting testing figures for front suspension coil springs. | 18th Mar 1938 | Box 9 \ 5 05-page187 | |
| Letter to Firestone Tyre & Rubber Co.Ltd. requesting further samples of engine mountings and buffers for testing. | 13th Mar 1938 | Box 9 \ 5 05-page188 | |
| Request for a covering order to Firestone Tyre & Rubber Co. Ltd. for engine mountings and buffers. | 18th Mar 1938 | Box 9 \ 5 05-page189 | |
| Letter from English Steel Corporation regarding the production and load testing of springs. | 21th Mar 1938 | Box 9 \ 5 05-page190 | |
| Letter to Daimler Co. Ltd. requesting a quotation for supplying cast steel housings. | 22th Mar 1938 | Box 9 \ 5 05-page191 | |
| Quotation from The Daimler Co. Ltd. for 200 Main Lever Housing Castings in Steel. | 24th Mar 1938 | Box 9 \ 5 05-page192 | |
| Letter to Daimler Foundry concerning a quotation and specifications for a minimum section thickness. | 25th Mar 1938 | Box 9 \ 5 05-page193 | |
| Letter from Daimler providing a quotation for pattern equipment and discussing the minimum thickness for Main Lever Housing steel castings. | 28th Mar 1938 | Box 9 \ 5 05-page194 | |
| Confirmation memo correcting the part numbers for rear springs on car model 28.G.VI. | 30th Mar 1938 | Box 9 \ 5 05-page195 | |
| Design change for the front anchorage of the rear springs on the Wraith model. | 8th Apr 1938 | Box 9 \ 5 05-page196 | |
| Request to send a covering order to Superflexit Ltd. for flexible tubes. | 13th Apr 1938 | Box 9 \ 5 05-page197 | |
| Failure analysis report on a welded high carbon cast steel Wraith spring pot bracket from a bump rig test. | 13th Apr 1938 | Box 9 \ 5 05-page198 | |
| Scheme for a strengthened main lever housing on the Wraith III front suspension due to a casting failure. | 14th Apr 1938 | Box 9 \ 5 05-page199 | |
| Decision to change the Wraith III front suspension main lever housing from a steel casting to a reinforced steel forging after component failure. | 21th Apr 1938 | Box 9 \ 5 05-page200 | |
| Letter from Superflexit Ltd concerning the specification, pricing, and performance of Type 'MX' flexible tubing. | 22th Apr 1938 | Box 9 \ 5 05-page201 | |
| Test procedure for a failing flexible pipe on the Wraith Governor Unit. | 3rd May 1938 | Box 9 \ 5 05-page202 | |
| Condition report on a broken lower pivot bearing and a front crossmember assembly. | 4th May 1938 | Box 9 \ 5 05-page203 | |
| Condition report on the Wraith III Bumper Chassis front suspension unit after 49.5 hours of running. | 4th May 1938 | Box 9 \ 5 05-page204 | |
| Photograph showing a Lower Pivot Bearing's outer race after a test run. | 4th May 1938 | Box 9 \ 5 05-page205 | |
| Photograph showing a fractured main lever housing after a test run. | 10th May 1938 | Box 9 \ 5 05-page206 | |
| Scheme for a threaded pin anchorage for the rear spring on the Wraith III model. | 10th May 1938 | Box 9 \ 5 05-page207 | |
| Estimate for a modification to the Wraith III front suspension main lever housing to simplify machining. | 19th May 1938 | Box 9 \ 5 05-page208 | |
| Requesting the fitting of the latest production type suspension buffers to Wraith car 28.G.VI. | 16th May 1938 | Box 9 \ 5 05-page209 | |
| Instruction memo to fit 8.5' initial deflection front coil springs to a 25 G.VI model car. | 16th May 1938 | Box 9 \ 5 05-page210 | |
| Chassis, passenger, and unsprung weights for the purpose of calculating the correct poundage for Wraith springs. | 16th May 1938 | Box 9 \ 5 05-page211 | |
| Graph showing spring poundage for various body weights for the Wraith model. | 19th May 1938 | Box 9 \ 5 05-page212 | |
| The use of longer rear springs on the Wraith replacement chassis for improved performance and cost-effectiveness. | 19th May 1938 | Box 9 \ 5 05-page213 | |
| Notice about modifications to the machining of the Main Lever Housing for the Wraith III front suspension. | 24th May 1938 | Box 9 \ 5 05-page214 | |
| Instructing the removal and resetting of front damper valve chambers on car 25.O.VI, reducing the initial load from 40 lbs to 30 lbs. | 20th Jun 1938 | Box 9 \ 5 05-page215 | |
| Specifications for the Wraith model's suspension springs and dampers. | 20th Jun 1938 | Box 9 \ 5 05-page216 | |
| Order for three sets of Wraith front springs from the English Steel Corp. | 4th Jul 1938 | Box 9 \ 5 05-page217 | |
| New drawings and modifications for the Wraith front suspension. | 5th Jul 1938 | Box 9 \ 5 05-page218 | |
| Requesting clamps to be made for the bearing rubbers for the front roll rod of a Wraith. | 8th Jul 1938 | Box 9 \ 5 05-page219 | |
| Requesting modification of rear shock dampers and front valve chambers for vehicle 29.G.VI. | 14th Jul 1938 | Box 9 \ 5 05-page220 | |
| Requesting the manufacture of parts for a Wraith front roll rod suspension modification. | 12th Aug 1938 | Box 9 \ 5 05-page221 | |
| Request to detail modifications for Wraith front suspension parts GW.1723 and GW.1721. | 20th Jun 1938 | Box 9 \ 5 05-page222 | |
| The design, modification, and material requirements for Wraith II roll rods. | 4th Oct 1938 | Box 9 \ 5 05-page223 | |
| Requesting the fitting of 8' deflection front springs and a front roll bar to specified vehicles. | 11th Oct 1938 | Box 9 \ 5 05-page224 | |
| Note concerning the front suspension coil springs for the Wraith III and Phantom III models. | 17th Oct 1938 | Box 9 \ 5 05-page225 | |
| Requesting two blueprints for the Wraith model's rear shock damper and front stabiliser. | 18th Oct 1938 | Box 9 \ 5 05-page226 | |
| Particulars for a new outer spring for the Wraith III front suspension. | 3rd Nov 1938 | Box 9 \ 5 05-page227 | |
| Specifications for an outer spring for a Wraith III with reduced outside diameter as sent in by E.S.C. | 4th Nov 1938 | Box 9 \ 5 05-page228 | |
| The ordering of suitable road springs for the Wraith chassis based on body weights. | 4th Nov 1938 | Box 9 \ 5 05-page229 | |
| The weights of various Wraith car bodies to assess their impact on road springs. | 2nd Nov 1938 | Box 9 \ 5 05-page230 | |
| Comparison of two Wraith models, 26.G.VI and 27.G.VI, regarding body weight, springs, and ride quality. | 5th Nov 1938 | Box 9 \ 5 05-page231 | |
| Scheme for a modified front anchorage bracket for the Wraith III rear springs to address forging difficulties. | 5th Nov 1938 | Box 9 \ 5 05-page232 | |
| Scheme for a modified front anti-roll rod bracket for the Wraith III model. | 10th Nov 1938 | Box 9 \ 5 05-page233 | |
| Instruction to manufacture one pair of mild steel levers for a Wraith Roll Rod, with specific details on drilling. | 15th Nov 1938 | Box 9 \ 5 05-page234 | |
| Difficulties and changing requirements for rear axle springs. | 8th Dec 1938 | Box 9 \ 5 05-page235 | |
| Difficulties with spring supplies for 'B' Series production and proposed solutions. | 8th Dec 1938 | Box 9 \ 5 05-page236 | |
| The investigation and testing of Wraith ride characteristics and damper settings. | 11th Jan 1939 | Box 9 \ 5 05-page237 | |
| Requesting the fitting of new front springs and modifications to the front dampers for car 24.G.VI. | 25th Jan 1939 | Box 9 \ 5 05-page238 | |
| Proposed lightened and simplified methods for the Wraith III rear end suspension. | 1st Mar 1939 | Box 9 \ 5 05-page239 | |
| Cover page regarding the Packard Type Suspension. | 27th Mar 1939 | Box 9 \ 5 05-page240 | |
| File cover or note concerning Packard Suspension. | 31th Mar 1939 | Box 9 \ 5 05-page241 | |
| Weight of the Bentley V front suspension, with a component breakdown and comparison to the Wraith III. | 29th Mar 1939 | Box 9 \ 5 05-page242 | |
| Technical note on the Wraith's ride quality and standard damper settings. | 10th Apr 1939 | Box 9 \ 5 05-page243 | |
| Specifications and recommendations for shock damper settings and buffer to axle clearances. | 4th Apr 1939 | Box 9 \ 5 05-page244 | |
| Modifications to the Wraith model's ride and suspension to address pitching and harshness issues. | 6th Apr 1939 | Box 9 \ 5 05-page245 | |
| Experimental results for determining the moment of inertia and centre of gravity of the 28.G model. | 10th Jul 1939 | Box 9 \ 5 05-page246 | |
| Calculation sheet for vehicle moment of inertia, weight distribution, and unsprung mass. | 10th Jul 1939 | Box 9 \ 5 05-page247 | |
| The receipt and testing of 12 accumulator cells from J.C. Fuller Ltd. | 7th Jul 1913 | Box 9 \ 6 06-page01 | |
| Quoting Mr. Royce's views on the use of Exide and Edison accumulators in trial cars. | 3rd Sep 1913 | Box 9 \ 6 06-page02 | |
| Test report on Fullers Block Accumulators. | 22th Sep 1913 | Box 9 \ 6 06-page03 | |
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