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).
Specimen chart tracking issues and expenditure for the 4¼ Litre Bentley clutch jaggers.
| Identifier | ExFiles\Box 126\2\ scan0172 | |
| Date | 27th July 1939 guessed | |
| GA GP HK{Col. T. Harker - Sales} HM{Capt. W. Hallam - Head Repairs} JD{J. Draper - Frames} JY KT KU LS LE MR MX{John H Maddocks - Chief Proving Officer} 10 20 30 40 500 400 300 200 100 PROP SHAFT DAMPER REINSTATED THERMOID LINERS. TOTAL EXPENDITURE MONTHLY EXPENDITURE. JAN ✓ FEB ✓ MAR ✓ APR ✓ MAY ✓ JUNE ✓ JULY AUG SEPT OCT NOV DEC JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC CLUTCH JAGGERS. 4¼ LITRE BENTLEY. (SPECIMEN CHART - FIGURES PURELY FICTITIOUS) | ||