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).
Chart of complaints for the 4¼ Bentley, graphing the number of faults from January to June 1938.
| Identifier | ExFiles\Box 131\2\ scan0143 | |
| Date | 1st January 1938 | |
| CHART OF COMPLAINTS 4¼ BENTLEY NO. OF COMPLAINTS 1938 JAN FEB MARCH APRIL MAY JUNE RATTLE IN STEERING COLUMN WAITING FOR MOD. FROM BY.{R.W. Bailey - Chief Engineer} KNOCK IN STEERING TUBE JOINTS STEERING WOBBLES WHEELS OUT OF BALANCE DYNAMO DRIVE RATTLE DRIVING RUBBERS WORN OIL ON COMMUTATOR DYNAMO NOISY & FAULTY NONE FAULTY STARTER MOTOR NONE DYNAMO NOT CHARGING FAULTY VOLTAGE REGULATOR NONE G.W.H 4 | ||