From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of components for a 10,000-mile road test on an Open Bentley 4-B-IV, detailing parts already fitted and others to be tested.
| Identifier | ExFiles\Box 82\2\ scan0001 | |
| Date | 16th January 1934 guessed | |
| Hs.{Lord Ernest Hives - Chair} X4553a OPEN BENTLEY - 4-B-IV. -------------------- If this car were to start 10,000 miles in England in a week's time we should be able to test - (1) Ransome & Marles pinion thrust race. (2) Bonded Asbestos brake linings. On car now (3) Front brake drum fastening. On car (4) Peregrine gearbox. (5) Spherical bearing equaliser shafts. On car. (6) New thermostat leverage. (7) Sump drain plug with increased ground clearance Lec.3727. On car. (8) Drilled Connecting rods. On car. (9) Forged steel clutch pressure plate. Wanted for B. Series but requiring considerably longer to fit. (10) Outside petrol filler, N.Sch.3929. (11) Dashboard axle fabric bonnet rests. (12) Tools under bonnet. (13) Shorter wing stays. (14) Latest Ph.II type brake adjustment. (15) Shock damper glands, Hs.{Lord Ernest Hives - Chair}1077. | ||