| Description | Date | Identifier | |
| The examination of a Standard B & B clutch for car B.216.GA and the decision to fit a Thermoid. | 2nd Dec 1937 | Box 90a \ 6 Scan166 | |
| Confirming the handover of a standard Borg & Beck clutch plate for car B.216.GA. | 2nd Dec 1937 | Box 90a \ 6 Scan167 | |
| History and sale of a never-used 4 1/4 Litre Bentley chassis owned by Mr. E.R. Hall. | 1st Dec 1937 | Box 90a \ 6 Scan168 | |
| Particulars of chassis B.106.GA, including its racing history for Le-Mans and the T.T. race, and subsequent preparation for sale. | 15th Dec 1937 | Box 90a \ 6 Scan169 | |
| Main bearing failures in Bentley chassis, discussing the issue, potential recall, risks, and costs. | 11th Jan 1938 | Box 90a \ 6 Scan170 | |
| Sale and overhaul of an experimental W.II No.2 unit for use in a motor boat. | 4th Apr 1938 | Box 90a \ 6 Scan171 | |
| List of correspondence with E.R. Hall. | 7th Apr 1938 | Box 90a \ 6 Scan172 | |
| Letter to E.R. Hall regarding the progress, cost, and electrical equipment for his engine unit. | 7th Apr 1938 | Box 90a \ 6 Scan173 | |
| Order status and delivery arrangements for a 25/30 HP engine unit for E.R. Hall. | 11th Apr 1938 | Box 90a \ 6 Scan174 | |
| Sale and delivery arrangements for an engine sold to a Mr. Hall. | 12th Apr 1938 | Box 90a \ 6 Scan175 | |
| Letter to E.R. Hall concerning the collection date for a motor-boat engine. | 14th Apr 1938 | Box 90a \ 6 Scan176 | |
| Delegating the handling of correspondence concerning E.R. Hall. | 20th Apr 1938 | Box 90a \ 6 Scan177 | |
| Request for the supply of various parts for W.II No.2 Unit to be despatched to E.R.Hall. | 26th Apr 1938 | Box 90a \ 6 Scan178 | |
| Cancelling a parts order for a Wraith III No.2 Unit following a telephone message. | 28th Apr 1938 | Box 90a \ 6 Scan179 | |
| Letter to E.R.Hall cancelling a request for a first motion shaft and suggesting an alternative drive arrangement. | 29th Apr 1938 | Box 90a \ 6 Scan180 | |
| Letter regarding plan and elevation drawings for the installation of an engine unit in a boat. | 6th May 1938 | Box 90a \ 6 Scan181 | |
| The supply and despatch of parts for an E.R. Hall No.2 Unit installation in his boat. | 28th May 1938 | Box 90a \ 6 Scan182 | |
| Dispatch of vehicle parts to Mr. E.R. Hall, with associated charges. | 31th May 1938 | Box 90a \ 6 Scan183 | |
| Letter to E.R. Hall, Esq. discussing an alternative drive scheme for a first motion shaft. | 1st Jun 1938 | Box 90a \ 6 Scan184 | |
| Page two of a typed letter regarding a first motion shaft. | 1st Jun 1938 | Box 90a \ 6 Scan185 | |
| Letter from Parsons Engineering Co Ltd with a proposal for coupling an engine to their standard F type reverse gears. | 14th Jun 1938 | Box 90a \ 6 Scan186 | |
| Continuation page of a letter from The Parsons Engineering Co. Ltd. enclosing a blueprint. | 14th Jun 1938 | Box 90a \ 6 Scan187 | |
| Arrangements for the sale and delivery of a used Bentley Coupe Body to a coachbuilder. | 14th Jun 1938 | Box 90a \ 6 Scan188 | |
| Arranging the delivery of a used Bentley Coupe body to Allweather Motor Bodies Ltd. | 15th Jun 1938 | Box 90a \ 6 Scan189 | |
| Letter to Parsons Engineering Co. Ltd. regarding the coupling of reverse gears to a 30 HP unit for Mr. Hall's boat. | 15th Jun 1938 | Box 90a \ 6 Scan190 | |
| Letter from Parsons Engineering Co Ltd confirming approval of suggestions for Mr. E.R. Hall's Engine. | 16th Jun 1938 | Box 90a \ 6 Scan191 | |
| Letter from Parsons Engineering Co Ltd regarding modifications to Mr. E.R. Hall's engine for marine service. | 16th Jun 1938 | Box 90a \ 6 Scan192 | |
| Continuation of a letter from The Parsons Engineering Co. Ltd. regarding a component conversion. | 16th Jun 1938 | Box 90a \ 6 Scan193 | |
| Letter to Parsons Engineering Co. about modifying a 30 HP boat unit's crankshaft fan pulley. | 20th Jun 1938 | Box 90a \ 6 Scan194 | |
| Letter from Parsons Engineering regarding the pulley construction and drive ratio for Mr. E.R. Hall's 30 HP boat unit. | 23th Jun 1938 | Box 90a \ 6 Scan195 | |
| Letter from Parsons Engineering Co Ltd concerning the engine feet for Mr. E.R. Hall's engine. | 27th Jun 1938 | Box 90a \ 6 Scan196 | |
| Continuation page of a letter from The Parsons Engineering Co. Ltd. regarding suitable and convenient equipment. | 27th Jun 1938 | Box 90a \ 6 Scan197 | |
| Letter to The Parsons Engineering Co. Ltd. regarding the rear support feet for Mr. Hall's 30 HP unit. | 29th Jun 1938 | Box 90a \ 6 Scan198 | |
| Letter from The Parsons Engineering Co Ltd concerning special reverse gear feet for Mr. E.R. Hall's engine. | 30th Jun 1938 | Box 90a \ 6 Scan199 | |
| Letter to The Parsons Engineering Co. Ltd. clarifying dimensions of steel front engine feet. | 1st Jul 1938 | Box 90a \ 6 Scan200 | |
| Reconditioning of chassis B.187-BL for resale, requesting a standard cylinder head in exchange for a special one. | 1st Jul 1938 | Box 90a \ 6 Scan201 | |
| The sending of an up-to-date cylinder head for the reconditioning of chassis B.187.BL. | 6th Jul 1938 | Box 90a \ 6 Scan202 | |
| Letter from Joan Hall regarding arrangements for E.R. to collect a Race Car and a P.3 unit from Derby. | 6th Dec 1938 | Box 90a \ 6 Scan203 | |
| Mr. Hall's Bentley car and its performance in the Ulster Tourist Trophy Race. | 11th Feb 1941 | Box 90a \ 6 Scan204 | |
| Race modifications and performance of a car entered by a private customer, Mr. Hall. | 11th Feb 1941 | Box 90a \ 6 Scan205 | |
| Mr. Hall's racing performance in 1934, subsequent car modifications, and the 1935 race season. | 11th Feb 1941 | Box 90a \ 6 Scan206 | |
| Car's modifications and race preparations in 1936 for Le Mans and the Ulster Tourist Trophy. | 11th Feb 1941 | Box 90a \ 6 Scan207 | |
| Motor race, comparing a Bentley against foreign cars like Delahaye and B.M.W., and detailing driver Hall's performance. | 11th Feb 1941 | Box 90a \ 6 Scan208 | |
| Letter requesting a customer collect their car from the service station due to a need for space for aero engine manufacture. | 18th Nov 1938 | Box 90a \ 6 Scan209 | |
| Letter to Mrs. E.R. Hall regarding car collection and a suggestion for engine modifications to a Phantom III unit. | 7th Dec 1938 | Box 90a \ 6 Scan210 | |
| Letter from F.R. to R.M. requesting a meeting on Monday evening. | 8th Dec 1938 | Box 90a \ 6 Scan211 | |
| From Joan E. Hall arranging a meeting with 'E.R.' to discuss 'the unit'. | 10th Feb 1939 | Box 90a \ 6 Scan212 | |
| Request to remove the lower half crankcase with float feed for B.35.AE. E.R.Hall and send it to HPS/FS. | 10th Feb 1939 | Box 90a \ 6 Scan213 | |
| Proposal to acquire special Le Mans engine parts from E.R. Hall by swapping them for standard parts for experimental work. | 16th Mar 1939 | Box 90a \ 6 Scan214 | |
| Short typed letter to Mrs. E.R. Hall regarding travel arrangements. | 9th Dec 1938 | Box 90a \ 6 Scan215 | |
| Customer's delayed car delivery and a proposal for replacing experimental parts with standard ones. | 23th Mar 1939 | Box 90a \ 6 Scan216 | |
| Request for a blueprint of the P3 for installation purposes, specifically its overall dimensions. | 5th Apr 1939 | Box 90a \ 6 Scan217 | |
| The overhaul and sale of an obsolete experimental unit, PH.III No.8. | 6th Apr 1939 | Box 90a \ 6 Scan218 | |
| Letter to E.R. Hall enclosing an installation drawing for a Phantom III engine. | 13th Apr 1939 | Box 90a \ 6 Scan219 | |
| Parts required to make a Ph.III No.8 Unit operable for Mr. E.R. Hall. | 13th Apr 1939 | Box 90a \ 6 Scan220 | |
| Letter thanking for a drawing of a P.3 unit and requesting its power curve. | 17th Apr 1939 | Box 90a \ 6 Scan221 | |
| The dispatch and suitability of a sea water radiator and oil cooler. | 18th Apr 1939 | Box 90a \ 6 Scan222 | |
| Letter regarding the casting of brass connections for a Harrison radiator. | 18th Apr 1939 | Box 90a \ 6 Scan223 | |
| Suggested drawing and enclosed top and bottom gaskets. | 18th Apr 1939 | Box 90a \ 6 Scan224 | |
| Assembly specification memo for the PH.III No.8 Unit engine for E.R. Hall. | 18th Apr 1939 | Box 90a \ 6 Scan225 | |
| List of required component replacements and fittings, including a water pump rotor and camshaft. | 18th Apr 1939 | Box 90a \ 6 Scan226 | |
| Request for details for a Phantom III No.8 Unit with separate payment instructions. | 20th Apr 1939 | Box 90a \ 6 Scan227 | |
| Discussion and recommendation for modifying Mr. Hall's racing car by replacing experimental parts with standard ones. | 21th Apr 1939 | Box 90a \ 6 Scan228 | |
| Page discussing the procedure and authorization for a job to be carried out by the Repair Department. | 21th Apr 1939 | Box 90a \ 6 Scan229 | |
| Letter to E.R. Hall regarding a power curve, instrument board, and cooling system for an engine unit. | 21th Apr 1939 | Box 90a \ 6 Scan230 | |
| Graph plotting a power comparison for the Phantom III engine, showing B.HP and M.E.P. against R.P.M. | 29th Apr 1969 | Box 90a \ 6 Scan231 | |
| Stamped document from the Print Room in Derby. | 29th Apr 1969 | Box 90a \ 6 Scan232 | |
| Rear axle gears and pinion for Hall's chassis B 35 AE. | 29th Apr 1969 | Box 90a \ 6 Scan233 | |
| List of non-standard parts to be removed from chassis B.35.AE and replaced with standard pieces. | 22th Apr 1939 | Box 90a \ 6 Scan234 | |
| Overhaul and sale of an obsolete experimental Phantom III No.8 Unit to Mr. E.R. Hall. | 22th Apr 1939 | Box 90a \ 6 Scan235 | |
| Letter to E.R. Hall regarding the testing of a radiator and oil cooler for a Phantom III engine. | 24th Apr 1939 | Box 90a \ 6 Scan236 | |
| Arrangements for Mr. E.R. Hall's special car and its storage. | 24th Apr 1939 | Box 90a \ 6 Scan237 | |
| Request for agreement to sell an obsolete Phantom III unit to E.R. Hall for £300 for use in a boat. | 24th Apr 1939 | Box 90a \ 6 Scan238 | |
| Letter confirming the dispatch of Phantom III engine drawings and a solution for running the engine at an incline. | 25th Apr 1939 | Box 90a \ 6 Scan239 | |
| Letter discussing a discrepancy in the Phantom III engine power curve. | 25th Apr 1939 | Box 90a \ 6 Scan240 | |
| Requesting a copy of a curve taken on a final test. | 28th Apr 1939 | Box 90a \ 6 Scan241 | |
| Letter regarding the return of a Gray Marine engine cooler and heat exchanger for credit. | 28th Apr 1939 | Box 90a \ 6 Scan242 | |
| Letter from Metropolis Garages regarding the oil cooler, heat exchanger, and lifting rings for the P.3. engine. | 3rd May 1939 | Box 90a \ 6 Scan243 | |
| Letter to Metropolis Garages Ltd. providing heat flow and radiator performance data for the Phantom III engine. | 5th May 1939 | Box 90a \ 6 Scan244 | |
| Letter to Metropolis Garages Ltd. regarding an oil cooler and engine lifting methods. | 5th May 1939 | Box 90a \ 6 Scan245 | |
| Letter from Metropolis Garages regarding the return of a smaller unit and an oil cooler for credit after a larger radiator was ordered. | 23th May 1939 | Box 90a \ 6 Scan246 | |
| The return of oil and water coolers to Metropolic Garages after testing on a Phantom III unit. | 24th May 1939 | Box 90a \ 6 Scan247 | |
| Letter to Metropolis Garages Ltd. regarding the return of a radiator/oil cooler and the status of an engine unit on test. | 24th May 1939 | Box 90a \ 6 Scan248 | |
| Letter from Metropolis Garages discussing engine readiness, collection/delivery of the unit, and the return of oil and water coolers. | 25th May 1939 | Box 90a \ 6 Scan249 | |
| Letter from Metropolis Garages regarding a new heat exchanger and a gearbox with a sea water pump drive. | 2nd Jun 1939 | Box 90a \ 6 Scan250 | |
| Letter to Mrs. E.R. Hall regarding a Phantom III engine for a motor boat. | 5th Jun 1939 | Box 90a \ 6 Scan251 | |
| Letter to Metropolis Garages regarding a large heat exchanger and special gearbox for a Phantom III unit. | 6th Jun 1939 | Box 90a \ 6 Scan252 | |
| Telegram requesting a boat engine be sent to Metropolis Garages Ltd, London. | 4th Jun 1939 | Box 90a \ 6 Scan253 | |
| The despatch of a Phantom III No.8 unit to Mr. E.R. Hall at Metropolis Garages. | 8th Jun 1939 | Box 90a \ 6 Scan254 | |
| Letter from Metropolis Garages confirming arrangements for sending a Phantom III engine and its heat exchanger. | 8th Jun 1939 | Box 90a \ 6 Scan255 | |
| Telegram requesting a boat engine to be sent to Metropolis Garages Ltd in Olympia, London. | 24th Feb 1944 | Box 90a \ 6 Scan256 | |
| Storage charges and the status of chassis B-35-AE for E.R. Hall, Esq. | 26th May 1938 | Box 90a \ 6 Scan257 | |
| List of non-standard engine and chassis features for car B35AE. | 19th Jun 1939 | Box 90a \ 6 Scan258 | |
| Letter from Metropolis Garages regarding gearbox drawings for the P.3 engine, discussing clearances, oil sealing and machining. | 16th Jun 1939 | Box 90a \ 6 Scan259 | |
| Handover and dispatch of connecting rod components for Mr. Raymond Mays. | 21th Jun 1939 | Box 90a \ 6 Scan260 | |
| Letter to Metropolis Garages Ltd. regarding the application of an Alta marine box to a Phantom III unit. | 29th Jun 1939 | Box 90a \ 6 Scan261 | |
| Page 2 of a letter to Metropolis Garages Ltd. concerning the return of Alta drawings. | 29th Jun 1939 | Box 90a \ 6 Scan262 | |
| Delay in repair work for car B.25-AE belonging to E.R. Hall. | 29th Jun 1939 | Box 90a \ 6 Scan263 | |
| Letter from Metropolis Garages requesting a drawing and confirmation about flexible engine mountings for a P.3 engine. | 3rd Jul 1939 | Box 90a \ 6 Scan264 | |
| Letter providing dimensions and recommendations for mounting a Phantom III crankcase and clutch case. | 7th Jul 1939 | Box 90a \ 6 Scan265 | |
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