| Description | Date | Identifier | |
| Car modifications including a slipper wheel and pistons, before proceeding to Le Canadel for testing. | 21th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan128 | |
| The introduction and suitability of 'Ethyl' petrol containing T.E.L. dope. | 21th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan129 | |
| Investigation into the cause of a periodic 'galloping knock' in an engine. | 23th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan130 | |
| Investigation into an engine knock, detailing tests on a slipper wheel and identifying the cause. | 23th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan131 | |
| Analysis of torsional strain and engine knock relating to the crankshaft and slipper wheels. | 24th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan132 | |
| The examination and testing of Lucas type ER6 chassis magnetos. | 24th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan133 | |
| The testing and examination of a Lucas ER6 Magneto from Chassis 7-EX after a 14,000-mile run. | 21th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan134 | |
| Torque reaction difficulties on a sports car, focusing on camshafts and engine mounting solutions. | 30th Jan 1923 | West Wittering \ R \ 2December1927-February1928 Scan135 | |
| The difficulties with damping engine torque reaction and chassis vibration, specifically mentioning the Continental Phantom. | 30th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan136 | |
| Performance feedback on the Continental Phantom model. | 30th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan137 | |
| Performance comparison between a sports engine and a standard engine, covering aspects like noise, running, acceleration, suspension and braking. | 30th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan138 | |
| The steering, control, and maximum speed of the Continental Phantom. | 30th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan139 | |
| Vehicle performance including speed tests at Brooklands, axle ratios, starting from cold, and gear changes. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan140 | |
| The results of bench tests on tungsten contact points using different anvils and coils. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan141 | |
| Report comparing the crankshaft vibrations of a Stutz engine with those of a 20 HP engine. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan142 | |
| Comparison of engine performance, focusing on vibrations, acceleration, and efficiency across different engine types. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan143 | |
| Crankshaft torsional vibrations in 6, 8, and twin-6 cylinder engines. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan144 | |
| Mathematical expressions for calculating total engine torque and analyzing harmonics for various cylinder configurations. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan145 | |
| Comparison of resonating harmonics and torsional periods for 6-cylinder, straight-eight, and twin-six engines. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan146 | |
| Comparison of torsional vibration, roughness, and crankshaft stiffness for six-cylinder, straight-eight, and twin-six engines. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan147 | |
| Analysis of crankshaft stiffness and torque variations for straight-eight and twin-six engines. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan148 | |
| Experiments with hydraulic shock dampers, discussing the effects of oil temperature and viscosity on pressure. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan149 | |
| Continued discussion on pressure velocity factors, damper loading, and low-pressure passages. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan150 | |
| Graph of pressure versus piston velocity for a standard shock damper, showing performance variations with temperature. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan151 | |
| Blank page with a purple ink stamp from the Derby Print Room. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan152 | |
| Graph plotting pressure against piston velocity under various air temperatures, with a diagram illustrating passage design. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan153 | |
| Blank page with a 'Print Room' reception stamp from Derby. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan154 | |
| Test results for a 9.5' pendulum lever on a heavy closed standard car. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan155 | |
| Updated diagram for an autocharge control switch, including revised winding directions. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan156 | |
| Wiring and improvements of an auto switch unit. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan157 | |
| Follow-up discussion on road testing the auto switch and dynamo, and consideration of a patent. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan158 | |
| Investigations into the Midgley unit and a temperature-related snag with the auto switch system's shunt coil. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan159 | |
| Adjustment of an auto switch for battery charging voltage and performance under different conditions. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan160 | |
| The functionality and operating parameters of an auto switch dependent on battery voltage rise. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan161 | |
| Battery overcharging issues, vibrator regulators, and the development of a 6-volt auto switch unit. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan162 | |
| The satisfactory performance of auto switches in experimental cars. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan163 | |
| Wiring diagram for a distribution board with a cut-out and auto switch. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan164 | |
| Blank page with a purple date stamp from the Derby Print Room. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan165 | |
| Wiring diagram illustrating the connections of auto-switch units. | 4th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan166 | |
| Stamped page with largely unreadable typewritten content. | 9th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan167 | |
| Miscellaneous points on the auto charge control switch, focusing on an extra coil for protection. | 15th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan168 | |
| Experiment with a fourth wire for added protection to the dynamo auto switch, and a discussion on temperature effects. | 15th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan169 | |
| Temperature compensation for battery charging, considering the use of a bi-metal strip and a series coil. | 15th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan170 | |
| Improving the temperature compensation of a main shunt coil. | 11th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan171 | |
| The noisiness of Watford EW6 magnetos and investigations into using modified cams to reduce it. | 11th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan172 | |
| The testing of EW6 magnetos for noise issues, detailing the causes and results from experimental machines. | 13th Dec 1927 | West Wittering \ R \ 2December1927-February1928 Scan173 | |
| Noise testing results for modified contact breaker levers and various magnetos. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan174 | |
| Noise and operating force issues with magnetos, comparing different machine types and proposed solutions. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan175 | |
| The design and performance issues of six magnetos, focusing on distributor rotor location and timing variations. | 11th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan176 | |
| The performance and durability testing of Lucas magneto machines, comparing tungsten and platinum contact points. | 24th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan177 | |
| Test report on an A-C petrol pump, comparing its performance to the Autovac for the Phantom model. | 16th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan178 | |
| Performance graph of an A.C. petrol pump showing delivery rate versus engine RPM under specific test conditions. | 17th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan179 | |
| Mostly illegible typed document with a purple ink stamp from the Print Room, Derby. | 17th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan180 | |
| Report comparing the performance and design of single-piece and two-piece weir type induction pipes. | 7th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan181 | |
| Report comparing different manifold and carburetter designs, including sketches and test results for models EAC.10 and EAC.14. | 7th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan182 | |
| Summary of road tests on different engine induction and manifold systems for the Phantom model. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan183 | |
| Optimal driving position and steering column options for the Continental Phantom. | 8th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan184 | |
| Tests of Weir type induction pipes for the Lighter Phantom engine. | 20th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan185 | |
| Comparison of power and distribution from three tests on induction pipe, fishtail, and hot spot pipe configurations. | 20th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan186 | |
| Power and distribution tests for different induction and carburetter arrangements. | 16th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan187 | |
| Performance graph comparing three different Weir induction pipe configurations by plotting Brake Horse Power and Brake Mean Effective Pressure against engine RPM. | 16th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan188 | |
| Blank page marked with a departmental date stamp from the Derby factory. | 20th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan189 | |
| Performance graph comparing Brake Horse Power and Brake Mean Effective Pressure against RPM for various Weir induction pipe setups. | 16th Feb 1925 | West Wittering \ R \ 2December1927-February1928 Scan190 | |
| Graph plotting Brake Horse Power and Brake Mean Effective Pressure against engine RPM for different Weir induction pipe tests. | 16th Feb 1938 | West Wittering \ R \ 2December1927-February1928 Scan191 | |
| Graph comparing performance tests of various Weir induction pipes, plotting BHP and BMEP against engine RPM. | 20th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan192 | |
| Mostly blank page with a purple date stamp at the bottom right. | 20th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan193 | |
| Performance comparison report on the 'Continental' Phantom model against the standard car. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan194 | |
| Sports car performance, customer expectations, and comparisons with competitor vehicles like Vauxhall, Sunbeam, and Bentley. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan195 | |
| Performance comparison of the Continental Phantom against competing cars and a discussion on its body design. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan196 | |
| List of technical advantages for a new rear-end design on fast cars, referencing the Continental Phantom. | 15th Feb 1921 | West Wittering \ R \ 2December1927-February1928 Scan197 | |
| Performance graph comparing the Standard and Sports Phantom engines, showing Brake Horse Power and Brake Mean Effective Pressure against RPM. | 15th Feb 1921 | West Wittering \ R \ 2December1927-February1928 Scan198 | |
| Blank document with a date stamp from the print room. | 23th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan199 | |
| Graph comparing the acceleration performance of Standard and Continental Phantom models. | 23th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan200 | |
| Blueprint graph showing the top gear performance comparison between Standard and Continental models. | 23th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan201 | |
| The reverse side of an archival document with a reference label and a print room stamp. | 23th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan202 | |
| Standard and experimental loadings for hydraulic dampers on Phantom & 20 HP models. | 1st Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan203 | |
| Axle control damper issue caused by foreign matter lodging in the valve seat and a suggested improvement. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan204 | |
| 20 HP exhaust manifold performance, correcting a previously misnumbered diagram and discussing power output improvements. | 2nd Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan205 | |
| Recommendation to produce a new low power loss manifold (Sch. 934) for the 20 HP chassis. | 17th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan206 | |
| Performance chart comparing various experimental exhaust manifolds against a standard manifold and open exhausts on a 20 HP engine. | 17th Jan 1928 | West Wittering \ R \ 2December1927-February1928 Scan207 | |
| Blank page with a date and location stamp. | 24th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan208 | |
| Blueprint showing three design variations for a 20 HP exhaust manifold. | 15th Dec 1928 | West Wittering \ R \ 2December1927-February1928 Scan209 | |
| Blank page with a 'Print Room' stamp from Derby. | 24th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan210 | |
| Customer complaints regarding insufficient dynamo output at high speeds for 40/50 models. | 27th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan211 | |
| Dynamo performance limitations and a proposed experiment for a new armature winding. | 6th May 1928 | West Wittering \ R \ 2December1927-February1928 Scan212 | |
| Test report on a Park Royal Ammeter, detailing initial issues, re-testing, and subsequent performance. | 28th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan213 | |
| Switch to a British supplier for instruments to avoid reliance on U.S.A. sources. | 28th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan214 | |
| Progress report on the 10,000 miles test of the 15-EX car in France, detailing steering and frame distortion investigations. | 28th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan215 | |
| Test report on the 15-EX car after 10,000 miles, covering general condition, suspension, and bodywork. | 26th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan216 | |
| Issues with a car's bodywork, specifically a developing crack and rattles from the dash. | 26th Feb 1928 | West Wittering \ R \ 2December1927-February1928 Scan217 | |
| Test report on the Hele-Shaw filter, detailing its failures during use and suggesting improvements and alternatives. | 3rd Oct 1927 | West Wittering \ R \ 2October1927-November-1927 1 | |
| The life testing of Silico Manganese and Chrome Vanadium front road springs. | 1st Oct 1927 | West Wittering \ R \ 2October1927-November-1927 2 | |
| Comments on the operation of the auto charge reducing switch. | 3rd Oct 1927 | West Wittering \ R \ 2October1927-November-1927 3 | |
| Recurring failure of a spare wheel carrier and proposing potential solutions. | 4th Oct 1927 | West Wittering \ R \ 2October1927-November-1927 4 | |
| Recommending the allocation of a distinguishing EAC number to the Phantom 'Sports' Chassis for record-keeping purposes. | 5th Oct 1927 | West Wittering \ R \ 2October1927-November-1927 5 | |
| Modified experimental connection of a shunt coil on a distribution box to prevent high voltage damage. | 8th Oct 1927 | West Wittering \ R \ 2October1927-November-1927 6 | |
| Continuation page discussing a chassis connection change and its potential effect on the safety margin of the field fuse. | 2nd Nov 1927 | West Wittering \ R \ 2October1927-November-1927 7 | |
| Experiments charging a standard P & R battery to different characteristics. | 10th Oct 1927 | West Wittering \ R \ 2October1927-November-1927 8 | |
| Regulator controlled or auto switch systems and the maximum voltage for a full battery charge. | 10th Oct 1927 | West Wittering \ R \ 2October1927-November-1927 9 | |
| Tests on charging a P & R RR11-3 battery to a modified characteristic of V = 16 - .15 A. | 18th Jul 1927 | West Wittering \ R \ 2October1927-November-1927 10 | |
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