| Description | Date | Identifier | |
| Slight modification to the Wraith II Combined Body Bracket and Step Iron. | 16th Jun 1936 | Box 8 \ 10 10-page013 | |
| The arrangement of body brackets and step irons for the Wraith II model. | 18th Jun 1936 | Box 8 \ 10 10-page014 | |
| Cover note for drawings of floorboards and a dash bracket for the Wraith II model. | 2nd Jul 1936 | Box 8 \ 10 10-page015 | |
| Design of the front frame extension, bumper mounting, and roll rod for the Wraith II. | 7th Jul 1936 | Box 8 \ 10 10-page016 | |
| 'Wraith II' front expansion box for a narrower frame, which cancels a previous document. | 30th Jun 1936 | Box 8 \ 10 10-page017 | |
| Visit to Messrs. Rubery Owen in Dalston regarding the Wraith II frame development and general frame construction. | 2nd Oct 1936 | Box 8 \ 10 10-page018 | |
| The construction of Riley and commercial vehicle frames, comparing welding and riveting techniques. | 2nd Oct 1936 | Box 8 \ 10 10-page019 | |
| Progress and spot welding construction of the Wraith frame with supplier Rubery Owen. | 26th Oct 1936 | Box 8 \ 10 10-page020 | |
| Design of the Wraith frame and the requirement for experimental versions before production costing. | 29th Oct 1936 | Box 8 \ 10 10-page021 | |
| Design and fixing of the Wraith II battery box and its support. | 29th Oct 1936 | Box 8 \ 10 10-page022 | |
| Letter to Messrs. Rubery, Owen & Co., Ltd. arranging a meeting to discuss the position of motor frames. | 5th Nov 1936 | Box 8 \ 10 10-page023 | |
| List of points raised following a visit to supplier Messrs. Rubery-Owen in Darlaston. | 9th Nov 1936 | Box 8 \ 10 10-page024 | |
| Letter to Messrs. Rubery, Owen & Co. confirming an amendment to the Battery Crossmember drawing FW.192 to allow for a welded joint. | 10th Nov 1936 | Box 8 \ 10 10-page025 | |
| Supplier visit to Rubery, Owen & Co. regarding queries on the Wraith frame production. | 10th Nov 1936 | Box 8 \ 10 10-page026 | |
| Requesting an alteration to a drawing of a battery cross-member and for a copy to be sent to Messrs. Rubery, Owen & Co. | 10th Nov 1936 | Box 8 \ 10 10-page027 | |
| Visit to supplier Rubery, Owen & Co. to discuss the production of the Wraith frame. | 10th Nov 1936 | Box 8 \ 10 10-page028 | |
| Design and production clarifications for the Wraith Frame. | 13th Nov 1936 | Box 8 \ 10 10-page029 | |
| Letter from Rubery, Owen & Co Ltd confirming a design change to a battery crossmember drawing. | 13th Nov 1936 | Box 8 \ 10 10-page030 | |
| Increased cost and torsional rigidity of the new Wraith II frame. | 17th Nov 1936 | Box 8 \ 10 10-page031 | |
| Cost comparison for the Wraith II and 25/30 HP chassis frames. | 17th Nov 1936 | Box 8 \ 10 10-page032 | |
| Cost comparison (sheet 2) for frame components, concluding the Wraith frame is 5% more expensive than the 25/30 HP. | 27th Nov 1936 | Box 8 \ 10 10-page033 | |
| Manufacturing and assembly of a chassis frame, including parts, materials, and drilling procedures. | 27th Nov 1936 | Box 8 \ 10 10-page034 | |
| The progress of Wraith II frames and fittings following a supplier visit. | 27th Nov 1936 | Box 8 \ 10 10-page035 | |
| Production delays and difficulties with the Wraith II frame. | 16th Dec 1936 | Box 8 \ 10 10-page036 | |
| Verbal agreement confirming modifications to the Wraith II Rear Dumb Iron. | 17th Dec 1936 | Box 8 \ 10 10-page037 | |
| Confirming an order for undrilled frames for the Wraith model to be drilled at Derby. | 21th Dec 1936 | Box 8 \ 10 10-page038 | |
| Revised design of the rear spring aft shackle for the Wraith II to simplify production and reduce cost. | 23th Dec 1936 | Box 8 \ 10 10-page039 | |
| Weight of the Wraith 1A frame received from Messrs. Rubery, Owen. | 31th Dec 1936 | Box 8 \ 10 10-page040 | |
| The welded frame assembly for the Wraith II chassis and instructions for drilling holes. | 4th Jan 1937 | Box 8 \ 10 10-page041 | |
| Proposed modification for the Wraith II Body Bracket & Step Iron attachment due to an assembly issue. | 11th Jan 1937 | Box 8 \ 10 10-page042 | |
| Modifications and specifications for the Wraith II frame, including welding pitch and hole clearances. | 14th Jan 1937 | Box 8 \ 10 10-page043 | |
| Proposal for 1.5' spacing on the Wraith II frame and queries for the supplier Rubery Owen. | 13th Jan 1937 | Box 8 \ 10 10-page044 | |
| Letter from a supplier regarding the completion of the third experimental frame. | 17th Feb 1937 | Box 8 \ 10 10-page045 | |
| Official covering order be sent to Messrs Rubery, Owen & Co.Ltd. for a frame. | 22th Jan 1937 | Box 8 \ 10 10-page046 | |
| Letter to supplier Rubery, Owen & Co. Ltd. confirming details for manufacturing a third frame, FW.479. | 22th Jan 1937 | Box 8 \ 10 10-page047 | |
| Visit from Rubery Owen regarding frame manufacturing issues for Wraith II and Bentley III models. | 22th Jan 1937 | Box 8 \ 10 10-page048 | |
| Modifications to a Bentley frame and related communications. | 22th Jan 1937 | Box 8 \ 10 10-page049 | |
| Arrangements with Rubery Owen for frames for the Experimental Department. | 22th Jan 1937 | Box 8 \ 10 10-page050 | |
| Letter to a supplier regarding drawings for a motor frame with modified weld spacing. | 27th Jan 1937 | Box 8 \ 10 10-page051 | |
| Letter from a supplier regarding receipt of drawings and a material delay for a frame order. | 30th Jan 1937 | Box 8 \ 10 10-page052 | |
| Letter from supplier Rubery, Owen & Co. Ltd confirming an arrangement to produce a third frame (FW.479) from thinner gauge material. | 1st Feb 1937 | Box 8 \ 10 10-page053 | |
| Cost comparison between the Wraith, Phantom III, and Phantom II frames, referencing a quote from Rubery Owen. | 17th Feb 1937 | Box 8 \ 10 10-page054 | |
| Proposal for Rubery Owen to build six 'Wraith' 25/30 HP frames on a cost basis. | 17th Feb 1937 | Box 8 \ 10 10-page055 | |
| Letter from Rubery, Owen & Co. Ltd. providing a quotation for 'Wraith' and '25/30 HP' frames. | 16th Feb 1937 | Box 8 \ 10 10-page056 | |
| Letter to Messrs. Rubery Owen & Co. Ltd regarding the 'Wraith' Frame and the building of six 25/30 HP frames. | 17th Feb 1937 | Box 8 \ 10 10-page057 | |
| Welding and testing procedures for the Wraith II rear cross member. | 17th Feb 1937 | Box 8 \ 10 10-page058 | |
| Welding and testing of the Wraith II rear cross member. | 17th Feb 1937 | Box 8 \ 10 10-page059 | |
| Letter to a supplier regarding blueprint limits and frame construction. | 23th Feb 1937 | Box 8 \ 10 10-page060 | |
| Letter to Rubery, Owen & Co. Ltd. cancelling a visit and sending amended blueprints. | 24th Feb 1937 | Box 8 \ 10 10-page061 | |
| Letter from Rubery, Owen & Co Ltd acknowledging receipt of a letter cancelling a visit and advising that mentioned blueprints have not yet arrived. | 26th Feb 1937 | Box 8 \ 10 10-page062 | |
| Letter from Rubery, Owen & Co. confirming instructions for a fourth frame, discussing materials, drawings, and drilling arrangements. | 1st Mar 1937 | Box 8 \ 10 10-page063 | |
| Dimensional errors and discrepancies on the third frame of a Wraith II chassis. | 10th Mar 1937 | Box 8 \ 10 10-page064 | |
| List of discrepancies and required corrections for frame components, holes, and assembly. | 10th Mar 1937 | Box 8 \ 10 10-page065 | |
| Letter to a supplier detailing five specific design modifications for a motor frame. | 11th Mar 1937 | Box 8 \ 10 10-page066 | |
| Inspection report detailing inaccuracies on the third Wraith motor frame supplied by Rubery, Owen Ltd. | 15th Mar 1937 | Box 8 \ 10 10-page067 | |
| List of discrepancies and required corrections for frame components, plates, holes, and slots. | 16th Mar 1937 | Box 8 \ 10 10-page068 | |
| Letter from supplier Rubery, Owen & Co. Ltd. confirming receipt of blueprints and agreeing to modifications for a frame. | 16th Mar 1937 | Box 8 \ 10 10-page069 | |
| Letter from Rubery, Owen & Co Ltd regarding a report on the third Wraith Frame. | 19th Mar 1937 | Box 8 \ 10 10-page070 | |
| Requesting an order be passed to Messrs Rubery, Owen for a complete set of Wraith frame pressings. | 25th Mar 1937 | Box 8 \ 10 10-page071 | |
| Letter to Messrs Rubery, Owen Ltd. requesting undrilled Wraith frame pressings for distortion testing. | 25th Mar 1937 | Box 8 \ 10 10-page072 | |
| Letter to Rubery Owen & Co. Ltd. regarding the inspection procedure for the 4th Wraith frame. | 31th Mar 1937 | Box 8 \ 10 10-page073 | |
| Letter regarding the delivery and inspection of the 4th Wraith Frame before final drilling. | 2nd Apr 1937 | Box 8 \ 10 10-page074 | |
| Letter from Rubery, Owen & Co Ltd regarding a delay in completing a Raith Frame due to awaiting a battery box bracket. | 5th Apr 1937 | Box 8 \ 10 10-page075 | |
| Dispatch of a Wraith III frame part, a Support Boss, to Messrs. Rubery Owen. | 6th Apr 1937 | Box 8 \ 10 10-page076 | |
| Visit to Rubery Owen to discuss modifications and production details of the Wraith frame. | 9th Apr 1937 | Box 8 \ 10 10-page077 | |
| Production status and manufacturing changes for various car frames, including collaborations with Rubery Owen. | 9th Apr 1937 | Box 8 \ 10 10-page078 | |
| Letter to Messrs. Rubery Owen & Co. confirming specifications for experimental frames. | 10th Apr 1937 | Box 8 \ 10 10-page079 | |
| Letter discussing the addition of stiffening ribs and a production timeline for frame components. | 10th Apr 1937 | Box 8 \ 10 10-page080 | |
| Letter confirming an agreement to produce three sets of pressed side channels for an experimental frame, detailing materials, gauges and assembly. | 10th Apr 1937 | Box 8 \ 10 10-page081 | |
| The addition of stiffening ribs to a frame and the production timeline for a complete frame. | 10th Apr 1937 | Box 8 \ 10 10-page082 | |
| Letter to a supplier regarding the construction of an experimental frame. | 12th Apr 1937 | Box 8 \ 10 10-page083 | |
| Letter to a supplier regarding blueprints and manufacturing details for an experimental frame. | 12th Apr 1937 | Box 8 \ 10 10-page084 | |
| Letter to Rubery Owen & Co. with instructions for bolting and modifications to an experimental frame. | 14th Apr 1937 | Box 8 \ 10 10-page085 | |
| Confirmation of a scheme for extra lightening and hand holes in the Wraith III Frame. | 15th Apr 1937 | Box 8 \ 10 10-page086 | |
| Letter to supplier Rubery Owen & Co. regarding modifications and bolting particulars for an experimental frame. | 14th Apr 1937 | Box 8 \ 10 10-page087 | |
| Benefits of bolting versus welding for the Wraith III frame cross members to prevent distortion. | 15th Apr 1937 | Box 8 \ 10 10-page088 | |
| Addition of an aluminium block for the dash-bracket and frame bolting for an experimental frame sent to Rubery Owen. | 15th Apr 1937 | Box 8 \ 10 10-page089 | |
| Letter to Messrs. Rubery Owen & Co. detailing the bolting specifications for an experimental frame. | 15th Apr 1937 | Box 8 \ 10 10-page090 | |
| The dispatch of drawings for the Wraith III frame cross members. | 16th Apr 1937 | Box 8 \ 10 10-page091 | |
| Letter to a supplier regarding design modifications for an experimental frame. | 24th Apr 1937 | Box 8 \ 10 10-page092 | |
| Design and testing of a new 'I' section frame cross for the Wraith III. | 11th May 1937 | Box 8 \ 10 10-page093 | |
| Test on the Wraith III box section frame to assess the effect of lightening holes on noise. | 22th May 1937 | Box 8 \ 10 10-page094 | |
| Design and effectiveness of an additional crossmember for the Wraith frame. | 24th May 1937 | Box 8 \ 10 10-page095 | |
| Proposal detailing experimental modifications to the Wraith III frame to increase transverse stiffness. | 3rd Jun 1937 | Box 8 \ 10 10-page096 | |
| Letter concerning the modification and cost of the male frame die for the Wraith III model. | 4th Jun 1937 | Box 8 \ 10 10-page097 | |
| Wear on the Wraith III main lever housing and suggesting tighter limits for bolts or increased boss thickness. | 7th Jun 1937 | Box 8 \ 10 10-page098 | |
| Comparison document on the torsional stiffness of the Wraith frame against Packard and Cadillac models. | 8th Jun 1937 | Box 8 \ 10 10-page099 | |
| Agreement on modifications to the Wraith frame cross, including adding a hand hole and enlarging a hole for the pedal shaft bearing. | 14th Jun 1937 | Box 8 \ 10 10-page100 | |
| Proposing cost-reduction modifications for the Wraith frame from Rubery Owens. | 10th Jun 1937 | Box 8 \ 10 10-page101 | |
| Proposal to experimentally delete stiffener plates from the Wraith III frame to reduce cost and weight. | 11th Jun 1937 | Box 8 \ 10 10-page102 | |
| Technical review of a proposal concerning vehicle frame modifications and potential risks. | 21th Jul 1937 | Box 8 \ 10 10-page103 | |
| Confirming tests on a Wraith frame stiffener and Buick suspension, while also considering Packard suspension for a Bentley. | 21th Jul 1937 | Box 8 \ 10 10-page104 | |
| Alteration memo regarding Wraith III frames & fittings, confirming that no change is recommended. | 23th Jun 1937 | Box 8 \ 10 10-page105 | |
| Investigation into the use of odd gauge sizes for Wraith III frames and fittings. | 23th Jun 1937 | Box 8 \ 10 10-page106 | |
| Covering letter for prints showing a proposal for a box shape crossmember on the Wraith III frame. | 24th Jun 1937 | Box 8 \ 10 10-page107 | |
| Proposal for a box-shaped crossmember on the Wraith III frame, enclosing related prints. | 24th Jun 1937 | Box 8 \ 10 10-page108 | |
| Request to fit a new propellor shaft to chassis 25-G-VI, replacing the existing Hardy Spicer shaft. | 30th Jun 1937 | Box 8 \ 10 10-page109 | |
| Preference for a welded over a brazed design for the Wraith rear crossmember. | 2nd Jul 1937 | Box 8 \ 10 10-page110 | |
| Chassis and body torsion test report for a Wraith Continental Touring Saloon. | 25th May 1937 | Box 8 \ 10 10-page111 | |
| Torsion test results for a Wraith 25.6.VI chassis and Continental Touring Saloon body. | 25th May 1937 | Box 8 \ 10 10-page112 | |
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