| Description | Date | Identifier | |
| Specification changes for a 25-4X (L.d.) Chassis (Unit No. 21) following a 25,000-mile test. | 21th Nov 1931 | Box 169 \ 1 img197 | |
| Specification document detailing revisions to front and rear axle, springs, and brake components. | 26th Nov 1931 | Box 169 \ 1 img198 | |
| Comparison of previous and revised specifications for steering, joint, hub, and brake components. | 26th Nov 1931 | Box 169 \ 1 img199 | |
| Specification revision for a bonnet, detailing the addition of a rubber buffer scheme to prevent knocks. | 26th Nov 1931 | Box 169 \ 1 img200 | |
| Specification changes for Unit No. 21 (L.H. Chassis 25-MX) parts after a 25,000-mile test, comparing previous and revised specifications. | 26th Nov 1931 | Box 169 \ 1 img201 | |
| Specification change note comparing previous and revised versions of flywheel, clutch, and shaft components. | 26th Nov 1931 | Box 169 \ 1 img202 | |
| Request to refit the radiator mounting back to standard to repeat tests for frame jellying. | 8th Dec 1931 | Box 169 \ 1 img203 | |
| Specification revision for 25-GX (L.H.) Chassis Unit No. 21, detailing changes to the radiator and exhaust systems. | 17th Dec 1931 | Box 169 \ 1 img204 | |
| Listing units to be fitted to the 25-EX model. | 11th Jan 1932 | Box 169 \ 1 img205 | |
| Specification revision notice for chassis KL-X, detailing changes to rear hubs, brakes and associated parts. | 1st Jan 1932 | Box 169 \ 1 img206 | |
| Specification revision document for L.H. Chassis 25-EX, unit number 21, detailing previous and revised parts. | 25th Jan 1932 | Box 169 \ 1 img207 | |
| Specification comparison document detailing revisions to rear hubs, front axles, and brakes. | 25th Jan 1932 | Box 169 \ 1 img208 | |
| Revised specification for Unit No. 21, L.H. Chassis 25-EX, detailing changes to servo operating levers. | 25th Jan 1932 | Box 169 \ 1 img209 | |
| Specification change for electrical equipment on L.H. Chassis 25-EX. | 25th Jan 1932 | Box 169 \ 1 img210 | |
| Specification revision for L.H. Chassis 25-EX, Unit No. 21, detailing new replacement front shock damper parts. | 26th Jan 1932 | Box 169 \ 1 img211 | |
| Confirming verbal instructions to fit Cresswell brake liners to front and rear foot brakes. | 8th Feb 1932 | Box 169 \ 1 img212 | |
| Specification revision for brake linings on L.H. Chassis 25-EX (Unit No. 21). | 15th Feb 1932 | Box 169 \ 1 img213 | |
| Specification revision for L.H. Chassis 25-EX (No.21 Unit) concerning the radiator mounting. | 21th Mar 1932 | Box 169 \ 1 img214 | |
| Specification revision for chassis 25-EX (Unit No. 21) detailing changes to brake linings. | 23th Mar 1932 | Box 169 \ 1 img215 | |
| Specification revision for Chassis 25-WX, Engine Unit No.21, detailing new exhaust fitting parts. | 22th Aug 1932 | Box 169 \ 1 img216 | |
| Request to fit clutch modifications from car 58-GN to car 25-EX and check the AutoKlean filter. | 5th Sep 1932 | Box 169 \ 1 img217 | |
| Proposal to fit heavier exhaust valves and stronger tappet springs to address issues with valve stretching. | 12th Sep 1932 | Box 169 \ 1 img218 | |
| Instruction to dismantle a cylinder head and reduce exhaust valve guides for engine 25-EX. | 12th Oct 1932 | Box 169 \ 1 img219 | |
| Specification sheet listing parts for Chassis 26-EX (Short Type) and Engine Unit EF 35. | 27th Jun 1930 | Box 169 \ 1 img220 | |
| List of parts with their corresponding 'LOP' (List of Parts) reference numbers. | 27th Jun 1930 | Box 169 \ 1 img221 | |
| List of vehicle components and their corresponding List of Parts (LOP) numbers. | 27th Jun 1930 | Box 169 \ 1 img222 | |
| Specification sheet for Engine Unit EF 85, Chassis 26-EX, Short Type, listing components and their LOP numbers. | 27th Jun 1930 | Box 169 \ 1 img223 | |
| List of components and their corresponding part numbers, continued on page 2. | 27th Jun 1930 | Box 169 \ 1 img224 | |
| List of gearbox and associated mechanism components with their corresponding List of Parts (LOP) numbers. | 27th Jun 1930 | Box 169 \ 1 img225 | |
| Electrical equipment specification for Chassis 26-MX (Short Type) with Engine Unit EF 85. | 27th Jun 1930 | Box 169 \ 1 img226 | |
| List of electrical components and their corresponding drawing numbers. | 27th Jun 1930 | Box 169 \ 1 img227 | |
| Specification revision for Chassis 26-EX (Short Type), Unit EF.35. | 27th Jun 1930 | Box 169 \ 1 img228 | |
| Specifications for rear road springs, fittings, and modifications to the change gear and brake mechanism. | 1st Jul 1930 | Box 169 \ 1 img229 | |
| Specification revision for Chassis 26-EX (Short Type), Unit EF 35. | 18th Jul 1930 | Box 169 \ 1 img230 | |
| List of parts and modifications for servo countershafts, dashbrackets, and change gear mechanisms. | 18th Jul 1930 | Box 169 \ 1 img231 | |
| Specification revision for Chassis 26-EX, detailing changes to the Hartford shock dampers. | 25th Aug 1930 | Box 169 \ 1 img232 | |
| Deciding to build a new higher ratio rear axle for the 26-EX trials car. | 28th May 1931 | Box 169 \ 1 img233 | |
| Reference request from D. Napier & Son Ltd for a job applicant, Chas. Bowen. | 29th Sep 1914 | Box 169 \ 2 img001 | |
| Letter of reference for a former employee, Charles Bowen, sent to Messrs D. Napier & Son Ltd. | 14th Oct 1914 | Box 169 \ 2 img002 | |
| Letter of reference for former employee Charles Bowen. | 6th Nov 1914 | Box 169 \ 2 img003 | |
| Letter to Mr. Bowen regarding the signing of a reference document in the absence of Mr. Hives. | 9th Nov 1914 | Box 169 \ 2 img004 | |
| Letter of application for a position as a technically trained assistant in electrical principles and practice. | 9th May 1920 | Box 169 \ 2 img005 | |
| Letter from E.C. Hignett detailing experience in electricity and maintenance. | 15th May 1920 | Box 169 \ 2 img006 | |
| Letter of application outlining the sender's qualifications and experience. | 15th May 1920 | Box 169 \ 2 img007 | |
| Job application letter from Francis J Allen regarding salary expectations. | 31th May 1920 | Box 169 \ 2 img008 | |
| Job offer letter to Mr. C. A. Pignatt detailing salary, start date, and working hours. | 31th May 1920 | Box 169 \ 2 img009 | |
| Letter accepting one of two vacancies and arranging travel to Derby. | 2nd Jun 1920 | Box 169 \ 2 img010 | |
| Letter from T. Hignett confirming his start date and commitment to his new role. | 3rd Jun 1920 | Box 169 \ 2 img011 | |
| Letter confirming a change of dates and new arrival details in response to a telegram. | 3rd Jun 1920 | Box 169 \ 2 img012 | |
| Electrical Experimental staff changes, including a new hire and a resignation. | 4th Jun 1920 | Box 169 \ 2 img013 | |
| Letter of employment offering a position to Mr. F.J. Allen, detailing salary and working hours. | 10th Jun 1920 | Box 169 \ 2 img014 | |
| Letter requesting to postpone a visit until a later date. | 13th Jun 1920 | Box 169 \ 2 img015 | |
| Letter of acceptance for an offer of employment, including a request for start time and lodging suggestions. | 14th Jun 1920 | Box 169 \ 2 img016 | |
| Letter to Mr. F.J. Allen arranging his start date and discussing accommodation. | 14th Jun 1920 | Box 169 \ 2 img017 | |
| The employment application of a Mr. Chapman, stating no positions are currently available. | 28th Jun 1920 | Box 169 \ 2 img018 | |
| Letter inquiring about a potential position for a young man who specializes in magnetos. | 15th Jun 1923 | Box 169 \ 2 img019 | |
| Letter from an individual offering their services, detailing experience with magnetos and car electrical equipment. | 15th Jun 1923 | Box 169 \ 2 img020 | |
| Job applicant's letter expressing a preference for steady work and requesting an interview in London. | 5th Jul 1923 | Box 169 \ 2 img021 | |
| Letter to Mr. Hives following up on a request for a position for a young man named Goodall. | 5th Jul 1923 | Box 169 \ 2 img022 | |
| Job application for a Mr. Goodall and the lack of available vacancies. | 7th Jul 1923 | Box 169 \ 2 img023 | |
| Letter declining a job inquiry for Mr. S. Ewing Hamilton for a position in the Experimental Dept. | 12th Jan 1925 | Box 169 \ 2 img024 | |
| Follow-up letter after an interview for a position in the experimental department, providing a contact address. | 16th Apr 1925 | Box 169 \ 2 img025 | |
| Letter rejecting a job application for an Assistant position due to a lack of specific training. | 20th May 1925 | Box 169 \ 2 img026 | |
| Job application letter from an engineering graduate. | 5th May 1925 | Box 169 \ 2 img027 | |
| Portion of a letter from an individual seeking employment, detailing their past work experience. | 5th May 1925 | Box 169 \ 2 img028 | |
| Letter politely declining an enquiry for a position due to no current vacancies. | 8th May 1925 | Box 169 \ 2 img029 | |
| Letter of apology for a previous unintroduced correspondence and a request to be kept on a list of enquiries. | 9th May 1925 | Box 169 \ 2 img030 | |
| Letter of recommendation for a former assistant, M. G. Berlyn, for a position after he graduates from Cambridge. | 11th May 1925 | Box 169 \ 2 img031 | |
| Letter discussing a job applicant and the advantages of a nearly closed magnetic circuit ignition coil. | 13th May 1925 | Box 169 \ 2 img032 | |
| Letter from a Cambridge graduate updating their address and confirming their degree qualifications. | 26th Jun 1925 | Box 169 \ 2 img033 | |
| Concluding a correspondence regarding a potential job vacancy. | 26th Jun 1925 | Box 169 \ 2 img034 | |
| Application with testimonials for the post of Maintenance Engineer from Norman Berry. | 26th Jun 1925 | Box 169 \ 2 img035 | |
| Application letter from Norman Berry for the position of Maintenance Engineer to the Borough of Southport. | 26th Jun 1925 | Box 169 \ 2 img036 | |
| Summary of an individual's work experience, military training, and other qualifications. | 26th Apr 1932 | Box 169 \ 2 img037 | |
| Letter from Norman Berry submitting testimonials and expressing interest in an appointment. | 26th Apr 1932 | Box 169 \ 2 img038 | |
| Copy of a testimonial for Mr. Norman Berry from Professor William Morgan. | 22th Apr 1932 | Box 169 \ 2 img039 | |
| Copy of a testimonial letter for Mr. Norman Berry from Bristol Tramways and Carriage Co. Ltd. | 22th Apr 1932 | Box 169 \ 2 img040 | |
| Copy of a testimonial for Mr. Norman Berry from The Bristol Tramways and Carriage Co. Ltd. | 21th Apr 1932 | Box 169 \ 2 img041 | |
| Arranging for a tester named Osbourne to visit the following week. | 10th Oct 1925 | Box 169 \ 2 img042 | |
| Letter from the University of London Appointments Board regarding candidates for an Assistant role in the Experimental Department. | 28th Sep 1926 | Box 169 \ 2 img043 | |
| Letter from W. Learmonth to Mr. Hives enquiring about the terms of future employment and wages. | 1st Oct 1926 | Box 169 \ 2 img044 | |
| Letter to Mr. Learmouth regarding a job offer that has been filled by another candidate. | 2nd Oct 1926 | Box 169 \ 2 img045 | |
| Letter to Mr. Leamouth regarding a potential re-employment opportunity. | 19th Oct 1926 | Box 169 \ 2 img046 | |
| Letter from the University of Cambridge Appointments Board recommending Mr. H.C.W. Brewer for a vacancy. | 27th Oct 1926 | Box 169 \ 2 img047 | |
| Biographical summary and character reference for H.C.W. Brewer. | 21th Oct 1926 | Box 169 \ 2 img048 | |
| Letter to Mr. Hives regarding a job vacancy and a potential offer. | 21th Oct 1926 | Box 169 \ 2 img049 | |
| Letter to the University of Cambridge Appointments Board regarding a filled vacancy and a potential future candidate. | 8th Nov 1926 | Box 169 \ 2 img050 | |
| Letter from the University of Cambridge Appointments Board regarding a filled vacancy and a potential future candidate. | 9th Nov 1926 | Box 169 \ 2 img051 | |
| Letter of recommendation for Mr R. P. Hubbersty from the Master of Christ's College, Cambridge. | 17th Nov 1926 | Box 169 \ 2 img052 | |
| Letter of recommendation for Mr R.P. Hubbersty from Christ's College, Cambridge. | 20th Nov 1926 | Box 169 \ 2 img053 | |
| Letter of reference for Mr Robert Hubbersty from Hathorn Davey & Co. Ltd. | 20th Dec 1926 | Box 169 \ 2 img054 | |
| Letter to F. C. Gibson inviting him for an interview for a potential vacancy in the Experimental Department. | 23th Sep 1926 | Box 169 \ 2 img055 | |
| Extract from the Institution of Automobile Engineers' Appointments Bureau register for a candidate. | 10th Jan 1927 | Box 169 \ 2 img056 | |
| Letter to H.C.W. Brewer Esq. inviting him for a job interview. | 10th Jan 1927 | Box 169 \ 2 img057 | |
| Letter to A. E. Russell inviting him for an interview for a vacancy in the Experimental Department. | 10th Jan 1927 | Box 169 \ 2 img058 | |
| Letter acknowledging a previous correspondence and confirming the acceptance of an appointment. | 11th Jan 1927 | Box 169 \ 2 img059 | |
| Job application letter for a position as an Assistant in the Experimental Department. | 27th Jan 1927 | Box 169 \ 2 img060 | |
| Application form for a registered graduate from the University of London. | 21th Jul 1920 | Box 169 \ 2 img061 | |
| Copy of a character reference for Patrick J. Borr from John Logue, J.P. | 21th Jul 1920 | Box 169 \ 2 img062 | |
| Reference letter for Mr. Patrick J. Dow from the Municipal Technical School, Londonderry. | 31th Aug 1926 | Box 169 \ 2 img063 | |
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