| Description | Date | Identifier | |
| Advice note from Armstrong's Patents Co. Ltd. about a rectified hand-controlled shock absorber. | 10th May 1937 | Box 152 \ 1 scan0318 | |
| Advice note from Armstrong's Patents Co. Ltd. for a large super shock absorber. | 13th May 1937 | Box 152 \ 1 scan0319 | |
| Settlement for Delco Shock Absorbers ordered from America. | 15th May 1937 | Box 152 \ 1 scan0320 | |
| Letter to Messrs. Delco-Remy & Hyatt Ltd. acknowledging receipt of shock absorbers and discussing payment. | 15th May 1937 | Box 152 \ 1 scan0321 | |
| Oil leakage issues with Luvax dampers on the Nairobi Phantom III and suggesting testing rubber glands. | 19th May 1937 | Box 152 \ 1 scan0322 | |
| Forwarding of Damper Casing Castings to Armstrong Patents Co., Ltd. | 19th May 1937 | Box 152 \ 1 scan0323 | |
| Letter from The Armstrong's Patents Co. Ltd. regarding the receipt of castings without tubular inserts. | 20th May 1937 | Box 152 \ 1 scan0324 | |
| Oil leaks in Luvax dampers and the potential trial of Duprene or rubber glands. | 19th May 1937 | Box 152 \ 1 scan0325 | |
| Letter to Mr. Gordon Armstrong regarding the testing and development of dampers. | 21th May 1937 | Box 152 \ 1 scan0326 | |
| Page 2 of a letter regarding the despatch of 8 castings without tube inserts. | 21th May 1937 | Box 152 \ 1 scan0327 | |
| Urgent requirement for Armstrong damper castings. | 21th May 1937 | Box 152 \ 1 scan0328 | |
| Letter to Ferranti Ltd. requesting details on an electric time clock used for testing shock absorbers. | 26th May 1937 | Box 152 \ 1 scan0329 | |
| Letter from Gordon Armstrong Patent Suspension Company regarding the performance and progress of shock absorbers. | 28th May 1937 | Box 152 \ 1 scan0330 | |
| Letter from Armstrong's Patents Co. Ltd. enclosing assembly drawings and advising of despatched parts for front dampers. | 28th May 1937 | Box 152 \ 1 scan0331 | |
| Advice note from Armstrong's Patents Co. Ltd. regarding a pair of shock absorber levers. | 28th May 1937 | Box 152 \ 1 scan0332 | |
| Outlining the development work required on shock dampers, comparing with the Armstrong damper. | 27th May 1937 | Box 152 \ 1 scan0333 | |
| Program outlining the development and testing of shock dampers and damper rigs. | 27th May 1937 | Box 152 \ 1 scan0334 | |
| Requirements for damper noise testing, links, suspension, and glands. | 27th May 1937 | Box 152 \ 1 scan0335 | |
| Invoice for a shock absorber link and arm from The Universal Car Co (Derby) Ltd. | 31th May 1937 | Box 152 \ 1 scan0336 | |
| Exploded view of a control rod and linkage assembly, showing its individual components. | 1st Jun 1937 | Box 152 \ 1 scan0337 | |
| Advice note from Armstrong's Patents regarding faulty shock absorber castings returned for inspection. | 1st Jun 1937 | Box 152 \ 1 scan0338 | |
| Advice note from Armstrong's Patents Co. Ltd. for a set of hand-controlled shock absorbers for the Experimental Department. | 2nd Jun 1937 | Box 152 \ 1 scan0339 | |
| Letter from Armstrong's Patents Co. Ltd. regarding drawing No. 470 Z, a Roll Rod Boss for chassis 33 EX, and the status of shock absorbers. | 2nd Jun 1937 | Box 152 \ 1 scan0340 | |
| Letter from Armstrong's Patents enclosing a drawing showing alterations for patterns and castings. | 3rd Jun 1937 | Box 152 \ 1 scan0341 | |
| Letter from Armstrong's Patents Co. Ltd. regarding a drawing for an adjustable leak on a shock absorber. | 4th Jun 1937 | Box 152 \ 1 scan0342 | |
| Despatch of 8 damper castings to Messrs. Armstrong Patent for experiments. | 5th Jun 1937 | Box 152 \ 1 scan0343 | |
| Letter from Armstrong's Patents Co. Ltd. enclosing a sketch of an Auto Locking Device and confirming pricing for an order of 1,000 dampers. | 8th Jun 1937 | Box 152 \ 1 scan0344 | |
| Request to alter Armstrong patterns and produce 24 damper castings. | 9th Jun 1937 | Box 152 \ 1 scan0345 | |
| Letter to Gordon Armstrong regarding the pricing, manufacturing, and design of dampers and levers. | 9th Jun 1937 | Box 152 \ 1 scan0346 | |
| Letter discussing snags and potential modifications for an auto-locking damper. | 9th Jun 1937 | Box 152 \ 1 scan0347 | |
| Letter from Armstrong's Patents Co. Ltd. regarding the despatch of patterns for making aluminium covers. | 9th Jun 1937 | Box 152 \ 1 scan0348 | |
| Advice note from Armstrong's Patents Co. Ltd. regarding patterns for aluminium covers. | 9th Jun 1937 | Box 152 \ 1 scan0349 | |
| Chasing the return or payment for rear shock absorber parts sent to Mr. G. Armstrong. | 11th Jun 1937 | Box 152 \ 1 scan0350 | |
| Letter from Armstrong's Patents Co. Ltd. regarding a shock absorber blow-out issue and subsequent design modifications. | 11th Jun 1937 | Box 152 \ 1 scan0351 | |
| Letter from Gordon Armstrong Patent Suspension discussing dampers, casings, materials, and an auto-locking device. | 11th Jun 1937 | Box 152 \ 1 scan0352 | |
| Brief handwritten memo confirming instructions have been noted and correspondence is being returned for filing. | 22th Jun 1934 | Box 152 \ 1 scan0353 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding the supply of Lovejoy Shock Absorber material for experimental purposes. | 13th May 1937 | Box 152 \ 1 scan0354 | |
| Advertisement leaflet for Genuine Delco-Lovejoy Shock Absorber Oil, detailing its use and availability. | 19th May 1937 | Box 152 \ 1 scan0355 | |
| Advertisement for Delco-Remy & Hyatt Ltd. listing their products, accessories, and services. | 19th May 1937 | Box 152 \ 1 scan0356 | |
| Despatch note for returning a broken shock damper piston link and a pattern to the makers. | 15th Jun 1937 | Box 152 \ 1 scan0357 | |
| Letter from The Armstrong's Patents Co. Ltd. regarding the dispatch and improvement of new connecting rods for shock absorbers. | 15th Jun 1937 | Box 152 \ 1 scan0358 | |
| Parts returned within shock absorbers supplied by Armstrong's. | 15th Jun 1937 | Box 152 \ 1 scan0359 | |
| Despatch of Armstrong Shock Damper Castings made from R.R.50 alloy. | 18th Jun 1937 | Box 152 \ 1 scan0360 | |
| Quotation from The Armstrong's Patents Co. Ltd. for 1000 shock absorbers. | 18th Jun 1937 | Box 152 \ 1 scan0361 | |
| Letter from Gordon Armstrong Patent Suspension discussing a new shock absorber arrangement and quotation to overcome pressure issues. | 18th Jun 1937 | Box 152 \ 1 scan0362 | |
| Advice note from Armstrong's Patents Co. Ltd. about a shock absorber lid pattern returned after alteration. | 19th Jun 1937 | Box 152 \ 1 scan0363 | |
| Advice note from Armstrong's Patents Co. Ltd for a pair of hand-controlled rear shock absorbers. | 19th Jun 1933 | Box 152 \ 1 scan0364 | |
| The casting of 24 damper covers in RR.50 alloy to be despatched to Armstrong's Patents Co. Ltd. | 25th Jun 1937 | Box 152 \ 1 scan0365 | |
| Advice note from Armstrong's Patents Co. Ltd. regarding a pair of rear shock absorbers for the Experimental Department. | 26th Jun 1933 | Box 152 \ 1 scan0366 | |
| Letter to Gordon Armstrong regarding failures of strengthened damper piston links and requesting new parts, casings, and drawings. | 26th Jun 1937 | Box 152 \ 1 scan0367 | |
| Letter to G. Armstrong, Esq. discussing damper performance, arrangements, and requesting drawings. | 26th Jun 1937 | Box 152 \ 1 scan0368 | |
| Letter from Gordon Armstrong Patent Suspension Company discussing shock absorbers, dampers and testing. | 28th Jun 1937 | Box 152 \ 1 scan0369 | |
| Letter from Gordon Armstrong Patent Suspension Co. Ltd. to Rolls-Royce Ltd. discussing a design change for a locking device. | 28th Jun 1937 | Box 152 \ 1 scan0370 | |
| Despatch instruction to return a complete shock damper in pieces to Armstrong's Patents Co.Ltd. for inspection. | 28th Jun 1937 | Box 152 \ 1 scan0371 | |
| Correspondence regarding a cracked damper casing, and the dispatch of replacement parts and drawings. | 28th Jun 1937 | Box 152 \ 1 scan0372 | |
| Letter to Gordon Armstrong discussing dampers and auto-locks for the 33-EX and Phantom III. | 29th Jun 1937 | Box 152 \ 1 scan0373 | |
| Advice note from Armstrong's Patents Co. Ltd. regarding a shock absorber and connecting rods. | 30th Jun 1937 | Box 152 \ 1 scan0374 | |
| Letter from Armstrong's Patents Co. Ltd. regarding the replacement of a broken shock absorber and its parts. | 29th Jun 1937 | Box 152 \ 1 scan0375 | |
| Letter from Armstrong's Patents Co. Ltd. discussing shock absorbers, enclosed drawings, and alterations. | 5th Feb 1937 | Box 152 \ 1 scan0376 | |
| Cross-sectional diagram of a cam-operated lever and piston assembly. | 5th Feb 1937 | Box 152 \ 1 scan0377 | |
| Dispatch of Armstrong Shock Damper castings to Messrs. Armstrong Patents Co., Ltd. | 3rd Aug 1937 | Box 152 \ 2 scan0001 | |
| Customer complaints with existing shock dampers and the advantages of the new Armstrong damper. | 6th Jul 1937 | Box 152 \ 2 scan0002 | |
| The development and testing of Armstrong dampers, detailing issues and modifications. | 6th Jul 1937 | Box 152 \ 2 scan0003 | |
| The performance, wear, and modifications of various damper designs and materials. | 6th Jul 1937 | Box 152 \ 2 scan0004 | |
| The development and testing of various damper and valve systems, detailing issues and proposed solutions. | 6th Jul 1937 | Box 152 \ 2 scan0005 | |
| Design requirements, manufacture, and servicing of dampers. | 6th Jul 1937 | Box 152 \ 2 scan0006 | |
| Blueprint diagram showing a cross-section of a valve spring plunger. | 6th Jul 1937 | Box 152 \ 2 scan0007 | |
| Cross-sectional diagram of a valve or plunger assembly. | 6th Jul 1937 | Box 152 \ 2 scan0008 | |
| Blueprint showing a cross-section of a Valve Control Piston. | 6th Jul 1937 | Box 152 \ 2 scan0009 | |
| Cross-sectional drawing of a mechanical piston or valve assembly. | 6th Jul 1937 | Box 152 \ 2 scan0010 | |
| Cross-section blueprint of a mechanical assembly, labelled Figure V. | 6th Jul 1937 | Box 152 \ 2 scan0011 | |
| Diagram of a servo spring for damper control, showing the control lever in hard and soft positions. | 6th Jul 1937 | Box 152 \ 2 scan0012 | |
| Drawing comparing old and new versions of a mechanical part with different views and cross-sections. | 6th Jul 1937 | Box 152 \ 2 scan0013 | |
| Cross-sectional blueprint of a mechanical valve or carburettor assembly. | 6th Jul 1937 | Box 152 \ 2 scan0014 | |
| Blueprint showing two cross-sectional views of a mechanical engine assembly. | 6th Jul 1937 | Box 152 \ 2 scan0015 | |
| Blueprint showing two cross-sectional views of a mechanical assembly. | 6th Jul 1937 | Box 152 \ 2 scan0016 | |
| Cross-section drawing of a shock damper valve. | 6th Jul 1937 | Box 152 \ 2 scan0017 | |
| Letter from Armstrong's Patents Co. Ltd. discussing the supply of gland rubbers and glands. | 6th Jul 1937 | Box 152 \ 2 scan0018 | |
| Letter from Gordon Armstrong Patent Suspension Co. Ltd. regarding a difficulty with a gland in a hand-control mechanism. | 7th Jul 1937 | Box 152 \ 2 scan0019 | |
| Letter from Armstrong's Patents Co. Ltd. regarding the supply of controlled rod glands with larger diameter rubbers. | 7th Jul 1937 | Box 152 \ 2 scan0020 | |
| Request to issue a covering order to the British Tyre & Rubber Co.,Ltd. for 6 Shock Absorber Rubber Glands. | 4th Aug 1937 | Box 152 \ 2 scan0021 | |
| Return of patterns for Bentley type Armstrong Dampers. | 23th Aug 1937 | Box 152 \ 2 scan0022 | |
| Letter from Armstrong's Patents Co. Ltd. regarding a quotation for shock absorbers and the suitability of a specific aluminium alloy. | 23th Aug 1937 | Box 152 \ 2 scan0023 | |
| Letter from The Armstrong's Patents Co. Ltd. requesting the return of patterns for shock absorber body and cover castings. | 23th Aug 1937 | Box 152 \ 2 scan0024 | |
| Arranging the return of an Armstrong shock damper pattern to its owners. | 25th Aug 1937 | Box 152 \ 2 scan0025 | |
| Letter to Armstrong's Patents Co. Ltd. regarding the return of shock damper patterns and alloy specifications. | 25th Aug 1937 | Box 152 \ 2 scan0026 | |
| Instructing the return of a pattern for an Armstrong Shock Damper Cover to Messrs Armstrong Ltd. | 1st Sep 1937 | Box 152 \ 2 scan0027 | |
| Letter from Armstrong's Patents Co. Ltd. chasing the despatch of promised patterns. | 3rd Sep 1937 | Box 152 \ 2 scan0028 | |
| Letter discussing bearing metal specifications (R.R.53.C vs P.Z.) and the potential use of a balanced valve for dampers. | 9th Sep 1937 | Box 152 \ 2 scan0029 | |
| Letter from Gordon Armstrong Patent Suspension Company regarding pressure die castings for R.R.53.C. and working with the Birmingham Aluminium Company. | 10th Sep 1937 | Box 152 \ 2 scan0030 | |
| Letter from Armstrong's Patents Co. Ltd. regarding the casting of part R.R.53.C and the supply of bushes. | 15th Sep 1937 | Box 152 \ 2 scan0031 | |
| Letter discussing the suitability and heat treatment of P.2 and R.R.53.C alloys for a damper casing. | 16th Sep 1937 | Box 152 \ 2 scan0032 | |
| Letter proposing a compromise for damper production due to continual trouble with parts made by an external supplier. | 21th Sep 1937 | Box 152 \ 2 scan0033 | |
| Letter from Armstrong's Patents Co. discussing the experimental nature of RR.53 pressure die casting and delaying a delivery commitment. | 21th Sep 1937 | Box 152 \ 2 scan0034 | |
| Letter to Gordon Armstrong regarding the supply of dampers, levers, and other components. | 4th Oct 1937 | Box 152 \ 2 scan0035 | |
| Letter detailing technical issues and proposed solutions for dampers, valves, and glands. | 4th Oct 1937 | Box 152 \ 2 scan0036 | |
| Covering order for shock absorbers from Armstrong's Patents Co. Ltd. | 4th Oct 1937 | Box 152 \ 2 scan0037 | |
| The despatch of road spring waxed paper to Toledo Woodhead Springs Ltd for inspection. | 5th Oct 1937 | Box 152 \ 2 scan0038 | |
| Letter from The Armstrong's Patents Co. Ltd. regarding slight alterations to drawings. | 5th Oct 1937 | Box 152 \ 2 scan0039 | |
| Follow-up letter from Armstrong's Patents Co. Ltd. regarding a matter with Birmingham Aluminium Casting Co. Ltd. | 6th Oct 1937 | Box 152 \ 2 scan0040 | |
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