| Description | Date | Identifier | |
| Test report on the development of the Bentley B.60 unit, detailing cylinder head modifications and ignition issues. | 1st Feb 1939 | Box 134 \ 2 scan0188 | |
| Engine modifications to reduce running-on, including increasing transfer throat area, fitting sodium-filled exhaust valves, and altering water passages. | 1st Feb 1939 | Box 134 \ 2 scan0189 | |
| Performance graph showing Mean Effective Pressure and Ignition Advance against RPM for a modified cylinder head. | 1st Feb 1939 | Box 134 \ 2 scan0190 | |
| Blueprint graph and analysis of engine performance, showing Mean Effective Pressure vs. R.P.M. | 1st Feb 1939 | Box 134 \ 2 scan0191 | |
| Performance graph and analysis for raised crown pistons with a 7:1 compression ratio. | 1st Feb 1939 | Box 134 \ 2 scan0192 | |
| Graph showing engine performance with a modified cylinder head, pistons, and a 6.8:1 compression ratio. | 1st Feb 1939 | Box 134 \ 2 scan0193 | |
| Performance graph and test analysis for a cylinder head with an opened out throat, sodium filled exhaust valves and flush top pistons. | 1st Feb 1939 | Box 134 \ 2 scan0194 | |
| Summary of test results and conclusions on engine performance, detonation, and power output. | 1st Feb 1939 | Box 134 \ 2 scan0195 | |
| Various troubles, test results, and attempted solutions for a crankshaft damper. | 1st Feb 1939 | Box 134 \ 2 scan0196 | |
| Camwheel failure due to crankshaft oscillation and a discussion on valve gear spring design to prevent bounce. | 1st Feb 1939 | Box 134 \ 2 scan0197 | |
| Technical report on inlet valve tappet clearance, rod types, and camshaft performance. | 1st Feb 1939 | Box 134 \ 2 scan0198 | |
| Component testing results for shafts, petrol pumps, dynamos, and proposals for further tests. | 1st Feb 1939 | Box 134 \ 2 scan0199 | |
| Engine modifications, including spring drive, combustion chamber design, and induction system development. | 1st Feb 1939 | Box 134 \ 2 scan0200 | |
| Power curve comparison chart for B.V. and B.60 engine units. | 1st Feb 1939 | Box 134 \ 2 scan0201 | |
| Graph plotting the results of a torsional oscillation test on a B.60 engine with various damper configurations. | 16th Feb 1939 | Box 134 \ 2 scan0202 | |
| Creation of a new engine pattern for both conventional and high-power engines. | 16th Feb 1939 | Box 134 \ 2 scan0203 | |
| Cover note for report S.339, which details design features and test results for high power heads. | 4th May 1944 | Box 134 \ 2 scan0204 | |
| Addition of test results for High Power Heads to design chart S.339. | 4th May 1944 | Box 134 \ 2 scan0205 | |
| Expense claim for a lunch during a visit to Brooklands. | 26th Apr 1933 | Box 134 \ 3 scan0001 | |
| Request for a £15 cash advance for G.W. Hancock's travel expenses to France. | 4th May 1933 | Box 134 \ 3 scan0002 | |
| Lunch expenses for two separate dates in May. | 24th May 1933 | Box 134 \ 3 scan0003 | |
| Expense claim form for meals and petrol at Brooklands. | 26th Jun 1933 | Box 134 \ 3 scan0004 | |
| Expense claim memo for two dinners, including one at Brooklands. | 1st Jul 1933 | Box 134 \ 3 scan0005 | |
| Expenses for Monday 10th July. | 17th Jul 1933 | Box 134 \ 3 scan0006 | |
| Expense claim for the purchase of petrol. | 25th Jul 1933 | Box 134 \ 3 scan0007 | |
| Expense claim form for a trip to Bristol. | 3rd Aug 1933 | Box 134 \ 3 scan0008 | |
| Expense claim for a trip to London and Dagenham. | 2nd Sep 1933 | Box 134 \ 3 scan0009 | |
| £30 cash advance for Mr. G.W. Hancock for expenses on a Bentley 10,000 miles test. | 30th Sep 1933 | Box 134 \ 3 scan0010 | |
| Expense claim form for travel and subsistence. | 4th Oct 1933 | Box 134 \ 3 scan0011 | |
| Request to the cashier for a £15 cash advance for Mr. W.A. Robotham's expenses to Paris. | 7th Oct 1933 | Box 134 \ 3 scan0012 | |
| Expense claim for a trip to Derby, London and the Motor Show. | 20th Oct 1933 | Box 134 \ 3 scan0013 | |
| Expense report for a trip to Salon and Chateauroux, France. | 20th Oct 1933 | Box 134 \ 3 scan0014 | |
| Financial calculation showing a currency conversion from Francs to Pounds Sterling and a final total. | 20th Oct 1933 | Box 134 \ 3 scan0015 | |
| Request for a fifty-pound cash advance for expenses related to car testing at Brooklands Trials. | 23th Oct 1933 | Box 134 \ 3 scan0016 | |
| Expense claim memo for lunches, tea, and petrol. | 14th Nov 1933 | Box 134 \ 3 scan0017 | |
| Authorising a cash advance for expenses related to a Bentley 10,000 miles test. | 18th Nov 1933 | Box 134 \ 3 scan0018 | |
| Request for a £15.0.0 cash advance for expenses related to running mileage on the 22-EX car. | 21th Nov 1933 | Box 134 \ 3 scan0019 | |
| Expense claim for a test of a Lincoln car. | 7th Dec 1933 | Box 134 \ 3 scan0020 | |
| Request for a £30.0.0 cash advance for expenses related to taking a Bentley car to and from France. | 12th Dec 1933 | Box 134 \ 3 scan0021 | |
| Itemized expense report for a trip to France. | 19th Dec 1933 | Box 134 \ 3 scan0022 | |
| Expense report detailing costs in both Francs and Pounds Sterling. | 27th Dec 1933 | Box 134 \ 3 scan0023 | |
| Requesting a letter of credit for £350 to cover expenses for a visit to America for 10,000 mile car tests. | 27th Dec 1933 | Box 134 \ 3 scan0024 | |
| Petty cash request for 10 shillings towards petrol expenses for road testing an R-42 Production Chassis. | 1st Mar 1934 | Box 134 \ 3 scan0025 | |
| Request for funds to purchase Regent Petrol for testing purposes. | 2nd Mar 1934 | Box 134 \ 3 scan0026 | |
| Telegram from Paris regarding the arrangement of funds from England. | 22th Mar 1934 | Box 134 \ 3 scan0027 | |
| Request for a £30 cash advance for expenses related to the 28-EX 10,000-mile car test in France. | 23th Mar 1934 | Box 134 \ 3 scan0028 | |
| Requesting an expense advance for a 10,000-mile car test in Chateauroux. | 20th Mar 1934 | Box 134 \ 3 scan0029 | |
| Requesting a search for a missing List of Correspondents related to a Letter of Credit. | 16th Apr 1934 | Box 134 \ 3 scan0030 | |
| Replying that a list of Bank Correspondents could not be found. | 20th Apr 1934 | Box 134 \ 3 scan0031 | |
| Expense report for a trip to the U.S.A. from January to March 1934. | 20th Apr 1934 | Box 134 \ 3 scan0032 | |
| Seemingly excessive cost of car insurance. | 20th Apr 1934 | Box 134 \ 3 scan0033 | |
| Itemised list of sterling expenses for a trip to the U.S.A. between January and March 1934. | 17th Apr 1934 | Box 134 \ 3 scan0034 | |
| Itemized list of expenses for the month of January, with costs listed in dollars. | 17th Apr 1934 | Box 134 \ 3 scan0035 | |
| Itemized expense report for the month of February. | 17th Apr 1934 | Box 134 \ 3 scan0036 | |
| Typed expense ledger sheet for travel and car maintenance from February to March. | 17th Apr 1934 | Box 134 \ 3 scan0037 | |
| Itemised expense sheet for the month of March, detailing travel, communication, and miscellaneous costs. | 17th Apr 1934 | Box 134 \ 3 scan0038 | |
| Itemized expense report detailing ship travel allowances and other costs. | 17th Apr 1934 | Box 134 \ 3 scan0039 | |
| Expense sheet detailing a B.A.R.C. subscription, food, and petrol costs. | 17th Apr 1934 | Box 134 \ 3 scan0040 | |
| Payment authorisation for an invoice from the Long Manufacturing Co. for two parts. | 7th May 1934 | Box 134 \ 3 scan0041 | |
| Payment arrangements for parts by Mr. Innskip in New York. | 9th May 1934 | Box 134 \ 3 scan0042 | |
| Request for a £15 cash advance for an employee to travel to Bristol for customer car work. | 14th May 1934 | Box 134 \ 3 scan0043 | |
| Expense report detailing costs for two lunches. | 19th May 1934 | Box 134 \ 3 scan0044 | |
| Expense report detailing costs for lunch, petrol, oil, and garage. | 4th Jun 1934 | Box 134 \ 3 scan0045 | |
| Invoice from Curzon Garage Co. Ltd. for petrol, oil, and garage services. | 1st Jun 1934 | Box 134 \ 3 scan0046 | |
| Expense claims for travel and a lunch. | 19th Jun 1934 | Box 134 \ 3 scan0047 | |
| Expense report for a visit to Ricardo & Co. & Aerolite Piston Co. | 28th Jun 1934 | Box 134 \ 3 scan0048 | |
| Mislaid expenses to be processed by the Accounts Department. | 29th Jun 1934 | Box 134 \ 3 scan0049 | |
| Letter of credit request for G.W. Hancock to cover the costs of a 1000 miles test in France. | 6th Jul 1934 | Box 134 \ 3 scan0050 | |
| Request to the cashier for a £30 cash advance for expenses to France for G.W. Hancock. | 9th Jul 1934 | Box 134 \ 3 scan0051 | |
| Expense claim form for a trip to Brooklands by Rn. & Ratcliffe. | 9th Jul 1934 | Box 134 \ 3 scan0052 | |
| To the Accounts Department regarding an unpaid invoice for petrol from Anglo-American Oil Co. Ltd. | 9th Jul 1934 | Box 134 \ 3 scan0053 | |
| Expense claim for a lunch during a visit to Crossley Motors. | 16th Jul 1934 | Box 134 \ 3 scan0054 | |
| Requesting £30 to cover the costs of taking car 21-G-IV to France. | 20th Jul 1934 | Box 134 \ 3 scan0055 | |
| Expense report detailing lunch and petrol costs. | 30th Jul 1934 | Box 134 \ 3 scan0056 | |
| Expense claim for meals at Brooklands. | 27th Aug 1934 | Box 134 \ 3 scan0057 | |
| Authorising a letter of credit for G.W. Hancock for a 10,000-mile car test in France. | 4th Sep 1934 | Box 134 \ 3 scan0058 | |
| Expense claim for a trip to Ireland. | 6th Sep 1934 | Box 134 \ 3 scan0059 | |
| Request for a £20 cash advance for G.W. Hancock for travel expenses to France. | 6th Sep 1934 | Box 134 \ 3 scan0060 | |
| Expense report for a trip between Derby, London, and Paris in October. | 10th Oct 1934 | Box 134 \ 3 scan0061 | |
| Expense claim form for attending the Motor Show. | 20th Oct 1934 | Box 134 \ 3 scan0062 | |
| Request for a letter of credit for Mr. Hancock's expenses in Chateauroux, France. | 31th Oct 1934 | Box 134 \ 3 scan0063 | |
| Requesting a £20 cash advance for G.W. Hancock for expenses for taking a car to France. | 1st Nov 1934 | Box 134 \ 3 scan0064 | |
| Expense report for travel to Brooklands and London. | 1st Nov 1934 | Box 134 \ 3 scan0065 | |
| Expense claim for a visit to Adamant Engineering Co. | 13th Nov 1934 | Box 134 \ 3 scan0066 | |
| Requesting a cash advance of £50 for I.A. Leslie for a trip to France regarding Dubonnet suspension. | 22th Nov 1934 | Box 134 \ 3 scan0067 | |
| Internal expense claim memo for food and fuel. | 7th Dec 1934 | Box 134 \ 3 scan0068 | |
| Letter from Chateauroux, France, requesting a further credit note of £500. | 8th Dec 1934 | Box 134 \ 3 scan0069 | |
| Lunch expense claim. | 20th Dec 1934 | Box 134 \ 3 scan0070 | |
| Request to the cashier for a £10 cash advance for G.W. Hancock's travel expenses to Chateauroux. | 27th Dec 1934 | Box 134 \ 3 scan0071 | |
| Internal expense claim for lunches. | 31th Dec 1934 | Box 134 \ 3 scan0072 | |
| Expense for a subscription to B.A.R.C. | 7th Jan 1935 | Box 134 \ 3 scan0073 | |
| Expense claim sheet for a trip from London to Paris. | 15th Jan 1935 | Box 134 \ 3 scan0074 | |
| Request to the cashier for a £20 cash advance for F. Dodd to visit France for testing vehicles. | 22th Jan 1935 | Box 134 \ 3 scan0075 | |
| Expense report for a return journey from Chateauroux to Derby for the week ending 19.1.35. | 23th Jan 1935 | Box 134 \ 3 scan0076 | |
| Financial statement showing currency exchange, travel expenses, and a final balance. | 23th Jan 1935 | Box 134 \ 3 scan0077 | |
| Expense report for a car test in France for coachbuilders. | 29th Jan 1935 | Box 134 \ 3 scan0078 | |
| Itemized expense report from January 1935, detailing travel costs in Francs and their conversion to Pounds. | 29th Jan 1935 | Box 134 \ 3 scan0079 | |
| Expense report detailing travel costs for January 1935. | 29th Jan 1935 | Box 134 \ 3 scan0080 | |
| Expense claim form for meals and travel between January and February 1935. | 13th Feb 1935 | Box 134 \ 3 scan0081 | |
| Expense claim form for two lunches. | 8th Mar 1935 | Box 134 \ 3 scan0082 | |
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