| Description | Date | Identifier | |
| Inter-office correspondence regarding component noise from Bijur and the testing of new electrical parts. | 19th Jul 1921 | Box 163 \ 7 img031 | |
| Examination of various American switch boxes with a recommendation to adopt the Delco from the Marmon car. | 22th Jul 1921 | Box 163 \ 7 img032 | |
| Design and placement of dashboard electrical components like switches, buzzers, and fuses. | 22th Jul 1921 | Box 163 \ 7 img033 | |
| Note about the circuit placement of a buzzer versus fuses, referencing a wiring diagram to follow. | 22th Jul 1921 | Box 163 \ 7 img034 | |
| Letter from Delco-Remy promoting their ignition equipment by listing recent motor race results. | 6th Aug 1921 | Box 163 \ 7 img035 | |
| Inter-office letter discussing proposals from Delco for ignition parts to replace the existing magneto system. | 3rd Aug 1921 | Box 163 \ 7 img036 | |
| Sourcing difficulties for a dual ignition set from American Bosch and considering a Delco alternative. | 14th Jan 1919 | Box 163 \ 7 img037 | |
| Blueprint showing top and side elevation views of a mechanical component. | 14th Jan 1919 | Box 163 \ 7 img038 | |
| Blueprint detailing the outline and dimensions of an ignition coil. | 8th Jan 1919 | Box 163 \ 7 img039 | |
| Letter concerning issues with American ignition parts, specifically the Bijur Distributor Board and Delco Switch. | 16th Nov 1921 | Box 163 \ 7 img040 | |
| Letter from Delco-Remy Ltd. detailing the success of their ignition systems at the Indianapolis 500 and Grand Prix des Voiturettes. | 22th Sep 1921 | Box 163 \ 7 img041 | |
| Reprint from 'Motor Commerce' magazine detailing Delco-Remy ignition sets and trends. | 24th Sep 1921 | Box 163 \ 7 img042 | |
| Comparison of Delco-Remy standard ignition outfits for well-known British and American engines. | 16th Jun 1922 | Box 163 \ 7 img043 | |
| Letter from Delco-Remy Ltd. detailing the success of their coil ignition system in motor racing. | 16th Jun 1922 | Box 163 \ 7 img044 | |
| Letter from Delco-Remy Ltd. regarding an enclosed article on the success of their DELCO and REMY ignition sets. | 4th Oct 1921 | Box 163 \ 7 img045 | |
| Internal request to obtain a competitor's Delco-Remy battery ignition system for comparison. | 26th Aug 1925 | Box 163 \ 7 img046 | |
| Letter from Delco-Remy & Hyatt Ltd. responding to an enquiry about coil ignition equipment for a 6-cylinder chassis. | 2nd Sep 1925 | Box 163 \ 7 img047 | |
| Requirement for automatic control on a Delco-Remy battery ignition system. | 3rd Sep 1925 | Box 163 \ 7 img048 | |
| Quotation from Delco Remy & Hyatt Ltd. for ignition equipment. | 4th Sep 1925 | Box 163 \ 7 img049 | |
| Quotation from Delco-Remy & Hyatt Ltd. for ignition equipment. | 7th Sep 1925 | Box 163 \ 7 img050 | |
| Requirement for automatic advance control on a Delco-Remy battery ignition distributor. | 7th Sep 1925 | Box 163 \ 7 img051 | |
| Request to purchase Delco-Remy semi-automatic control type battery ignition equipment. | 2nd Sep 1925 | Box 163 \ 7 img052 | |
| Query regarding a special order for a clockwise rotating distributor for a Delco-Remy Battery Ignition system. | 21th Sep 1925 | Box 163 \ 7 img053 | |
| Communication regarding the supply of a Delco-Remy distributor and ignition coil. | 28th Sep 1925 | Box 163 \ 7 img054 | |
| Clarifying part numbers for a Coil and Distributor from supplier Delco Remy & Hyatt Ltd. | 23th Oct 1925 | Box 163 \ 7 img055 | |
| Letter from Delco-Remy & Hyatt Ltd. confirming dispatch of ignition equipment and correcting an ignition coil model number. | 21th Oct 1925 | Box 163 \ 7 img056 | |
| Testing of a Delco-Remy ignition unit. | 2nd Nov 1925 | Box 163 \ 7 img057 | |
| Inspection and comparison report on a Delco-Remy 12-volt ignition system. | 3rd Nov 1925 | Box 163 \ 7 img058 | |
| Technical comparison of ballast resistance, primary winding resistance, and inductance in a coil and distributor system. | 3rd Nov 1925 | Box 163 \ 7 img059 | |
| Technical breakdown and analysis of the features of a Delco-Remy Distributor, Model 5249. | 26th Oct 1925 | Box 163 \ 7 img060 | |
| Specification sheet for a ballast resistance component and its associated assembly. | 2nd Nov 1925 | Box 163 \ 7 img061 | |
| The specifications and testing of Delco Coil No. 2178. | 2nd Nov 1925 | Box 163 \ 7 img062 | |
| Instruction sheet detailing a 10,000-mile bench test on a Delco-Remy distributor. | 26th Mar 1926 | Box 163 \ 7 img063 | |
| Inspection report on the condition and function of a distributor. | 29th Aug 1920 | Box 163 \ 7 img064 | |
| Instructions regarding the testing of a noisy distributor and associated ignition components. | 29th Jun 1920 | Box 163 \ 7 img065 | |
| Observation noting that the Remy distributor's offset contact points prevent pitting and blackening from centrifugally thrown oil, unlike the standard distributor. | 19th May 1926 | Box 163 \ 7 img066 | |
| Instruction note about inevitable deposits on points causing pitting and blackening. | 29th Jun 1920 | Box 163 \ 7 img067 | |
| Laboratory note regarding photomicrographs of Remy ignition tungsten contacts after a bench test. | 30th Mar 1926 | Box 163 \ 7 img068 | |
| Request for an analysis of two samples of ballast resistance wire. | 14th Jun 1926 | Box 163 \ 7 img069 | |
| Particulars of ballast resistance from a Delco-Remy unit in the lab. | 14th Jun 1926 | Box 163 \ 7 img070 | |
| Chemical analysis report for two samples of Ballast Resistance Wire. | 16th Jun 1926 | Box 163 \ 7 img071 | |
| Comparing a Delco Remy ignition contact breaker unit and coil against an in-house design, focusing on spark energy. | 11th Jul 1926 | Box 163 \ 7 img072 | |
| Technical discussion regarding coils with nearly closed magnetic circuits and trouble with contact points. | 1st Jul 1926 | Box 163 \ 7 img073 | |
| The 10,000-mile bench test of a Delco-Remy distributor. | 26th Mar 1926 | Box 163 \ 7 img074 | |
| Laboratory observation comparing the Remy distributor to the standard distributor regarding contact point pitting due to oil. | 19th May 1926 | Box 163 \ 7 img075 | |
| Doming of two Delco-Remy tungsten ignition contact points. | 6th Jul 1926 | Box 163 \ 7 img076 | |
| Requesting the doming of a pair of Delco Remy ignition contact points. | 11th Aug 1926 | Box 163 \ 7 img077 | |
| Letter from W.H. Reynolds & Co. discussing the condition and purity of tungsten contacts after examination. | 27th Aug 1926 | Box 163 \ 7 img078 | |
| Results of an assay on tungsten contact points and proposing further comparative tests between Remy and RR-Reynold parts. | 1st Sep 1926 | Box 163 \ 7 img079 | |
| Instructions detailing the ascertained capacity of a condenser and observations about its construction. | 29th Jun 1920 | Box 163 \ 7 img080 | |
| Experimental improvements to the battery ignition contact breaker unit. | 18th Sep 1926 | Box 163 \ 7 img081 | |
| Construction of a Delco coil in comparison to an American Bosch coil for experimental purposes. | 11th Nov 1926 | Box 163 \ 7 img082 | |
| Cross-sectional diagram of a Delco ignition coil showing part numbers and internal components. | 10th Nov 1926 | Box 163 \ 7 img083 | |
| Blueprint for an Ignition Coil Assembly with handwritten part numbers and annotations. | 10th Nov 1926 | Box 163 \ 7 img084 | |
| Observations of sample ignition contact points, comparing platinum and tungsten types. | 31th Dec 1926 | Box 163 \ 7 img085 | |
| The wear of tungsten and platinum ignition contact breaker points due to the presence of oil vapour. | 31th Dec 1926 | Box 163 \ 7 img086 | |
| Performance of platinum and tungsten contact points in a battery ignition system compared to a competitor's. | 10th Jan 1927 | Box 163 \ 7 img087 | |
| Despatching sample battery ignition contact points and a Delco-Remy distributor for testing. | 1st Jan 1927 | Box 163 \ 7 img088 | |
| Sending distributor and contact breaker units to Mr. Elliott for inspection. | 14th Jan 1927 | Box 163 \ 7 img089 | |
| From 'E' to 'EFC' regarding a sample Delco-Remy contact breaker for battery ignition. | 12th Jan 1927 | Box 163 \ 7 img090 | |
| Potential improvements to the battery ignition contact breaker by comparing it to Delco-Remy levers. | 13th Jan 1927 | Box 163 \ 7 img091 | |
| Sending Delco-Remy and American Bosch ignition components for inspection and testing. | 14th Jan 1927 | Box 163 \ 7 img092 | |
| Examination and comparison of Bosch and Delco Remy contact breakers, focusing on the angular off-set. | 17th Jan 1927 | Box 163 \ 7 img093 | |
| Comparison of flexibility and contact pressure for Bosch, Remy, and RR 20 HP ignition systems. | 17th Jan 1927 | Box 163 \ 7 img094 | |
| Design sketch and explanation for an umbrella rotor concerning air circulation. | 24th Feb 1927 | Box 163 \ 7 img095 | |
| Arguing in favor of using tungsten for battery ignition contact points. | 24th Feb 1927 | Box 163 \ 7 img096 | |
| Use of tungsten, interchangeability of contact breaker points, and the design of contact makers for battery ignition systems. | 23th Feb 1927 | Box 163 \ 7 img097 | |
| Interchangeability of battery ignition contact points with parts from Delco. | 28th Feb 1927 | Box 163 \ 7 img098 | |
| Requesting the return of a Delco-Remy contact breaker and distributor unit. | 2nd Mar 1927 | Box 163 \ 7 img099 | |
| Standardisation and design of battery ignition contact breaker points, comparing tungsten and platinum. | 4th Mar 1927 | Box 163 \ 7 img100 | |
| Technical analysis of ignition system performance, considering current, condenser capacity, and platinum point life. | 4th Mar 1927 | Box 163 \ 7 img101 | |
| Confirming the return of a Delco Remy contact breaker and distributor. | 7th Mar 1927 | Box 163 \ 7 img102 | |
| Comparison of Delco-Remy and U.S.A. Bosch ignition systems. | 29th Aug 1927 | Box 163 \ 7 img103 | |
| Comparing different ignition contact point systems and the performance of platinum versus tungsten points. | 31th Aug 1927 | Box 163 \ 7 img104 | |
| Standardising tungsten points over platinum points based on test results and customer feedback. | 31th Aug 1927 | Box 163 \ 7 img105 | |
| The procurement of two additional contact lever springs for a Delco-Remy ignition distributor. | 31th Aug 1927 | Box 163 \ 7 img106 | |
| The testing and standardisation of Tungsten Ignition Contact Points. | 9th Sep 1927 | Box 163 \ 7 img107 | |
| Comparative tests of contact breaker points, including standard tungsten, Remy, and U.S.A. Bosch types. | 6th Oct 1927 | Box 163 \ 7 img108 | |
| Comparing the performance and testing of De Jon, U.S.A. Bosch, and Delco-Remy battery ignition systems. | 6th Oct 1927 | Box 163 \ 7 img109 | |
| Experiments and developments in ignition systems, including contact breakers, coils, and comparisons with Bosch and Delco-Remy units. | 10th Oct 1927 | Box 163 \ 7 img110 | |
| The design and performance of ignition coils, comparing coils with and without ballast resistance. | 1st Oct 1927 | Box 163 \ 7 img111 | |
| Note on the Delco Remy ignition system for the Stutz, discussing coil resistance. | 1st Dec 1927 | Box 163 \ 7 img112 | |
| Blank graph template for plotting Make Ratio against Distributor values. | 1st Dec 1927 | Box 163 \ 7 img113 | |
| Graph showing make ratio-speed curves for a Delco-Remy Distributor, model 5249. | 1st Dec 1927 | Box 163 \ 7 img114 | |
| Graph plotting the make ratio-speed curves for a Delco-Remy distributor, model 5249. | 7th Mar 1928 | Box 163 \ 7 img115 | |
| Suggesting the dismantling of two American coils, Delco Remy and U.S.A. Bosch, to observe their construction. | 7th Mar 1928 | Box 163 \ 7 img116 | |
| Test log for a Delco-Remy distributor complete with ballast resistance and automatic advance. | 5th Oct 1926 | Box 163 \ 7 img117 | |
| Electrical experimental record sheet for a Delco-Remy distributor. | 19th Apr 1926 | Box 163 \ 7 img118 | |
| Letter responding to a query about the development of ignition coils and contact breakers, detailing the balance between current, contact point wear, and coil heating. | 17th May 1929 | Box 163 \ 7 img119 | |
| Technical letter discussing the effects of current heating on ignition coil insulation and the use of ballast resistance. | 14th May 1930 | Box 163 \ 7 img120 | |
| Performance of a Delco Remy ignition contact breaker on a Chrysler. | 14th May 1930 | Box 163 \ 7 img121 | |
| Requesting the acquisition of a Delco Remy 6-cylinder distributor and 12-volt ignition coil for testing. | 2nd Jul 1930 | Box 163 \ 7 img122 | |
| Extract from a letter to Delco-Remy & Hyatt Ltd. detailing the specifications of a supplied distributor. | 9th Jul 1930 | Box 163 \ 7 img123 | |
| Examination and analysis of a Delco-Remy condenser, including its capacity, dimensions, and construction. | 2nd Oct 1930 | Box 163 \ 7 img124 | |
| Description of a condenser design, detailing its construction and suggesting an alternative manufacturing practice. | 10th Oct 1930 | Box 163 \ 7 img125 | |
| Test report detailing the design and construction of an experimental coil. | 10th Oct 1930 | Box 163 \ 7 img126 | |
| Test report detailing the electrical properties of windings, including resistance, impedance, and circuit tests. | 10th Oct 1930 | Box 163 \ 7 img127 | |
| Test results page detailing secondary resistance, temperature, current, and speed measurements. | 10th Oct 1930 | Box 163 \ 7 img128 | |
| Test results report detailing voltage, RPM, and gap performance, with remarks on a Delco-Remy distributor test. | 10th Oct 1930 | Box 163 \ 7 img129 | |
| Failure of a coil and the subsequent examination of its windings. | 20th Oct 1930 | Box 163 \ 7 img130 | |
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