| Description | Date | Identifier | |
| Short typed message confirming an arrangement or meeting. | 18th Jan 1935 | Box 90a \ 3 Scan026 | |
| Telegram from Railton requesting wind tunnel figures and a chassis drawing. | 8th Jul 1938 | Box 90a \ 3 Scan027 | |
| Chasing a reply regarding work carried out on Chassis B.35 for accounting purposes. | 21th Jan 1935 | Box 90a \ 3 Scan028 | |
| Letter discussing a report on wind tunnel tests for E.R. Hall's car, comparing aerodynamic K factors. | 28th Jan 1935 | Box 90a \ 3 Scan029 | |
| Letter from Reid Railton regarding wind tunnel figures and a request to inspect a chassis for seat positioning. | 28th Jan 1935 | Box 90a \ 3 Scan030 | |
| Letter to E.R. Hall discussing the development of two chassis models for wind tunnel testing to optimize performance for racing regulations. | 28th Jan 1935 | Box 90a \ 3 Scan031 | |
| Page 2 of a letter to E.H. Hall Esq. concerning costs and arrangements for model work. | 29th Jan 1935 | Box 90a \ 3 Scan032 | |
| Letter to Reid Railton Esq. of Thomson & Taylor Ltd. enclosing a coachbuilder's drawing. | 29th Jan 1935 | Box 90a \ 3 Scan033 | |
| Letter and article from a publication discussing the future of international motor racing regulations. | 5th Feb 1935 | Box 90a \ 3 Scan034 | |
| Letter discussing securing an entry for Mr. E. R. Hall at the Le Mans race and other race-related details. | 5th Feb 1935 | Box 90a \ 3 Scan035 | |
| Letter discussing car speeds in relation to Le Mans and a participant's entrance fee. | 5th Feb 1935 | Box 90a \ 3 Scan036 | |
| Substituting the Le Mans race for the Mille Miglia. | 13th Feb 1935 | Box 90a \ 3 Scan037 | |
| Request to manufacture a set of push rods for a Bentley competition car. | 13th Feb 1935 | Box 90a \ 3 Scan038 | |
| Noting the attachment of a copy of a letter concerning E.F. Hall and racing. | 18th Feb 1935 | Box 90a \ 3 Scan039 | |
| Letter to Mr. Hall regarding the decision to not provide support for racing the Bentley car for the year. | 18th Feb 1935 | Box 90a \ 3 Scan040 | |
| Work carried out on Mr. F.R. Hall's car and ensuring it is invoiced. | 18th Feb 1935 | Box 90a \ 3 Scan041 | |
| Modifications and work carried out on Mr. E.R. Hall's car. | 20th Feb 1935 | Box 90a \ 3 Scan042 | |
| Fitting of an improved servo for testing, the cost of front wings, and a decision regarding assistance to Mr. Hall. | 20th Feb 1935 | Box 90a \ 3 Scan043 | |
| Estimate for additional work and modifications on Chassis 35 A.E. for E.R. Hall. | 25th Sep 1934 | Box 90a \ 3 Scan044 | |
| List of parts and modifications for rear brakes, front brakes, exhaust fittings, and servo motor mechanism. | 26th Feb 1935 | Box 90a \ 3 Scan045 | |
| Extraordinary cost of manufacturing wings for Mr. E.R. Hall's car. | 26th Feb 1935 | Box 90a \ 3 Scan046 | |
| Internal query regarding an invoice for supplying and fitting headlamp brackets to car B 35 -AE. | 6th Mar 1935 | Box 90a \ 3 Scan047 | |
| Letter apologising for a delay in collecting a 4-seater car due to illness and requesting the return of an M.G. sump. | 7th Mar 1935 | Box 90a \ 3 Scan048 | |
| Letter on headed paper arranging a meeting. | 8th Mar 1935 | Box 90a \ 3 Scan049 | |
| Fitting of a non-standard headlamp cross member to a car for a race. | 8th Mar 1935 | Box 90a \ 3 Scan050 | |
| Letter to E.R. Hall regarding a scrapped M.G. Sump, an invitation to lunch, and an outstanding bill for headlamp brackets. | 8th Mar 1935 | Box 90a \ 3 Scan051 | |
| Report comparing the performance of standard and larger induction systems. | 8th Mar 1935 | Box 90a \ 3 Scan052 | |
| Performance graph comparing different engine induction systems. | 30th Jan 1935 | Box 90a \ 3 Scan053 | |
| Blank page with a Print Room stamp from Derby. | 9th Mar 1935 | Box 90a \ 3 Scan054 | |
| Graph comparing the performance of three different induction systems based on induction pipe depression versus engine RPM. | 30th Jan 1935 | Box 90a \ 3 Scan055 | |
| Typewritten page, numbered '4', with a purple ink stamp in the bottom right corner. | 9th Mar 1935 | Box 90a \ 3 Scan056 | |
| Bentley Car and Racing, enclosing a copy of a letter from Mr. E.R. Hall. | 15th Mar 1935 | Box 90a \ 3 Scan057 | |
| Letter from E.R. Hall to Mr. Sidgreaves expressing disappointment over lack of assistance for a run. | 11th Mar 1935 | Box 90a \ 3 Scan058 | |
| Chasing a reply for a long outstanding matter concerning a Works Order. | 11th Mar 1935 | Box 90a \ 3 Scan059 | |
| The loan of lower gears to E.R. Hall for his car entered at Shelsley Walsh. | 7th May 1935 | Box 90a \ 3 Scan060 | |
| The lending of lower gears and billing for work on Mr. E.R. Hall's car. | 9th May 1935 | Box 90a \ 3 Scan061 | |
| Authorizing the release of axle gears from Stores for E.R. Hall's car to be run at the Shelsley event. | 10th May 1935 | Box 90a \ 3 Scan062 | |
| Performance graph for E.R. Hall's Bentley showing MPH vs RPM for each gear, specifically geared for hill climbing. | 16th May 1934 | Box 90a \ 3 Scan063 | |
| Arrangements for a secret entry into the International Tourist Trophy Race. | 16th May 1934 | Box 90a \ 3 Scan064 | |
| Letter discussing a change in tyre specifications for the T.T. race after consulting with Dunlop. | 6th Jun 1935 | Box 90a \ 3 Scan065 | |
| Proposed changes to wheel and tyre sizes to improve steering, with a comparison table. | 11th Jun 1935 | Box 90a \ 3 Scan066 | |
| Letter discussing tyre sizes and performance calculations. | 11th Jun 1935 | Box 90a \ 3 Scan067 | |
| Correspondence regarding vehicle performance calculations based on tyre dimensions. | 12th Jun 1935 | Box 90a \ 3 Scan068 | |
| Proposed engine modifications and endurance testing for a B-4 unit in Hall's T.T. race car. | 12th Jun 1935 | Box 90a \ 3 Scan069 | |
| Letter to The Royal Automobile Club requesting touring maps of Central Europe and the Dolomites. | 12th Jun 1935 | Box 90a \ 3 Scan070 | |
| Letter to E.R. Hall discussing tyre sizes, axle ratios, and gearing for a car. | 12th Jun 1935 | Box 90a \ 3 Scan071 | |
| Page 2 of a letter regarding information on 3.3 Bugattis. | 6th May 1935 | Box 90a \ 3 Scan072 | |
| Blueprint graph of vehicle speed versus engine speed for various gears and tyre sizes. | 12th Jun 1935 | Box 90a \ 3 Scan073 | |
| Almost entirely illegible document with a purple 'Print Room' date stamp. | 12th Jun 1935 | Box 90a \ 3 Scan074 | |
| Fitting a new cylinder head to E.R. Hall's car for the Shelsley Walsh Hill Climb at no charge. | 12th Jun 1935 | Box 90a \ 3 Scan075 | |
| Letter to Mr. Hall arranging for his car to be serviced prior to the Tourist Trophy Race. | 12th Jun 1935 | Box 90a \ 3 Scan076 | |
| New high-power cylinder head for a Bentley race engine to resolve pre-ignition problems. | 13th Jun 1935 | Box 90a \ 3 Scan077 | |
| Mr. E.R. Hall's Bentley, comparing it to the Lagonda after its Le Mans success, and scheduling personnel. | 27th Jun 1935 | Box 90a \ 3 Scan078 | |
| Letter to 'The Motor' magazine requesting details for a trip to the Belfast T.T. races in September 1935. | 2nd Jul 1935 | Box 90a \ 3 Scan079 | |
| Specification for the B-11 engine unit for the 1935 Tourist Trophy race. | 2nd Jul 1935 | Box 90a \ 3 Scan080 | |
| List of notes detailing component updates, replacements, and testing procedures. | 2nd Jul 1935 | Box 90a \ 3 Scan081 | |
| Letter to E.R. Hall concerning modifications and testing for an Alfa-Romeo car. | 3rd Jul 1935 | Box 90a \ 3 Scan082 | |
| Work to be carried out on E.R. Hall's car. | 3rd Jul 1935 | Box 90a \ 3 Scan083 | |
| Letter from Temple Press Ltd regarding travel arrangements for the R.A.C. T.T. Race in Belfast. | 4th Jul 1935 | Box 90a \ 3 Scan084 | |
| Letter concerning modifications for an 'Alfa', specifically regarding the design of the wings and the ordering of wheels. | 4th Jul 1935 | Box 90a \ 3 Scan085 | |
| Request for the centre measurements of bolt holes on rear wing brackets for a coachbuilder. | 4th Jul 1935 | Box 90a \ 3 Scan086 | |
| Letter from The Royal Automobile Club concerning regulations for the Tourist Trophy Race. | 4th Jul 1935 | Box 90a \ 3 Scan087 | |
| Plan for testing experimental car bodies, including a Van Vooren body and comparing steel versus aluminium panels. | 5th Jul 1935 | Box 90a \ 3 Scan088 | |
| Performance graph plotting vehicle speed (M.P.H.) against engine speed (R.P.M.) for various Dunlop racing tyres and axle ratios. | 8th Jun 1935 | Box 90a \ 3 Scan089 | |
| The reverse side of a document stamped by the Print Room in Derby. | 12th Jun 1935 | Box 90a \ 3 Scan090 | |
| Engine improvements and preparations for the E.R. Hall Ulster Bentley race car. | 6th Jul 1935 | Box 90a \ 3 Scan091 | |
| Power-output graph for a 3 1/2-Litre Bentley, comparing 1934 and 1935 Ulster T.T. models. | 1st Jul 1935 | Box 90a \ 3 Scan092 | |
| Heavily faded and torn document page, numbered '7', with a Print Room stamp. | 5th Jul 1935 | Box 90a \ 3 Scan093 | |
| Letter providing front wing dimensions and advising on removing the air intake filter. | 8th Jul 1935 | Box 90a \ 3 Scan094 | |
| Technical drawing detailing the dimensions for front and rear wing brackets. | 10th Jul 1936 | Box 90a \ 3 Scan095 | |
| Letter from coachbuilders Offord & Sons Ltd regarding the fabrication of special streamlined rear wings for a Bentley car. | 8th Jul 1935 | Box 90a \ 3 Scan096 | |
| Hand-drawn diagram detailing the positioning and mounting of a wheel wing with handwritten notes. | 1st Jul 1935 | Box 90a \ 3 Scan097 | |
| Specifications and results for a B-4 Unit 10-hour high-power endurance test. | 1st Jul 1935 | Box 90a \ 3 Scan098 | |
| Summary of total running times for various components of a B-4 Unit. | 1st Jul 1935 | Box 90a \ 3 Scan099 | |
| Letter to Dunlop Rubber Co. Ltd. regarding tyre life and performance for the Ulster course race. | 13th Jul 1935 | Box 90a \ 3 Scan100 | |
| The transfer of a cylinder head from a previous T.T. race car to be fitted for practice. | 15th Jul 1935 | Box 90a \ 3 Scan101 | |
| Letter to Dunlop expressing concerns over the weight and durability of recommended tyres for Hall's race car. | 11th Jul 1935 | Box 90a \ 3 Scan102 | |
| Viability of testing 6 1/4' tyres based on the unlikely prospect of a 50% life increase. | 11th Jul 1935 | Box 90a \ 3 Scan103 | |
| Letter to Offord & Sons Ltd. detailing minimum rear wing clearance and radius for Mr. Hall's car. | 13th Jul 1935 | Box 90a \ 3 Scan104 | |
| Letter to Messrs. Offord & Sons Ltd. concerning a sketch and clearance requirements for the rear wings of Mr. Hall's car. | 12th Jul 1935 | Box 90a \ 3 Scan105 | |
| Blueprint detailing measurements and clearances for an existing rear wing. | 18th Jul 1935 | Box 90a \ 3 Scan106 | |
| Power development and endurance graph for a 3 1/2 Litre Bentley engine from 1935. | 1st Jan 1935 | Box 90a \ 3 Scan107 | |
| The reverse of a document page, numbered '13' with a print room stamp. | 8th Jul 1935 | Box 90a \ 3 Scan108 | |
| Urgent supply of balance weights and bolts for E.R. Hall's car. | 15th Jul 1935 | Box 90a \ 3 Scan109 | |
| Letter chasing the delivery of jacks required to proceed with making adaptors for a front axle. | 15th Jul 1935 | Box 90a \ 3 Scan110 | |
| Confirmation of a telephone conversation regarding the changing of axle gears in Hall's car. | 15th Jul 1935 | Box 90a \ 3 Scan111 | |
| Parts required for the balance weights on E.R. Hall's car wheels. | 16th Jul 1935 | Box 90a \ 3 Scan112 | |
| Fitting of the last set of valve push rods to chassis B-187-BL and requesting their replacement. | 18th Jul 1935 | Box 90a \ 3 Scan113 | |
| Graph plotting vehicle speed in M.P.H. against engine speed in R.P.M. for 19' and 17' wheels. | 21th May 1912 | Box 90a \ 3 Scan114 | |
| Stamped document from the print room in Derby. | 16th Jul 1935 | Box 90a \ 3 Scan115 | |
| Letter discussing doubts about a car's readiness for a test at Brooklands due to parts and workshop delays. | 24th Jul 1935 | Box 90a \ 3 Scan116 | |
| Letter discussing car readiness, testing schedules before a trip to Italy, and component fitting. | 25th Jul 1935 | Box 90a \ 3 Scan117 | |
| Letter from Temple Press Ltd. enclosing 50 leaflets for the Tourist Trophy Race in Belfast. | 25th Jul 1935 | Box 90a \ 3 Scan118 | |
| Letter discussing the delivery of a car and a tight schedule for testing a T.T. car. | 25th Jul 1935 | Box 90a \ 3 Scan119 | |
| Correspondence regarding logistics from St Pancras and the production of light jacks. | 26th Jul 1935 | Box 90a \ 3 Scan120 | |
| Letter requesting four pit passes from a Captain Philips for an R.A.C. event. | 26th Jul 1935 | Box 90a \ 3 Scan121 | |
| Letter to Thomas Cook & Son Ltd. requesting the purchase of ten tickets for the R.A.C. Tourist Trophy Race. | 29th Jul 1935 | Box 90a \ 3 Scan122 | |
| Letter from The Royal Automobile Club to E.R. Hall concerning pit access for the Tourist Trophy Race. | 29th Jul 1935 | Box 90a \ 3 Scan123 | |
| Letter from the Experimental Department requesting to reserve ten tickets for the R.A.C. T.T. Race. | 30th Jul 1935 | Box 90a \ 3 Scan124 | |
| Letter from a travel agency regarding booking for an excursion to Belfast for the T.T. Races and a missing cheque. | 30th Jul 1935 | Box 90a \ 3 Scan125 | |
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