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).
Test log for Dunlop straight-sided tyres, recording mileage and performance remarks.
| Identifier | ExFiles\Box 45\1\ Scan126 | |
| Date | 24th October 1920 | |
| TESTS ( DUNLOP STRAIGHT-SIDED TYRES Tyre pressures - 70 lbs. rear. 65 lbs. front. | Date. | Tyres fitted. | Position on car. | Total mileage. F.{Mr Friese} | Total mileage. R.{Sir Henry Royce} | Daily miles. | Route taken. | Remarks. | |---|---|---|---|---|---|---|---| | 18.10.20 | FD.{Frank Dodd - Bodies}4529 FD.{Frank Dodd - Bodies}4536 FD.{Frank Dodd - Bodies}4522 FD.{Frank Dodd - Bodies}4509 | N front O front N rear O rear | 675 675 | 675 675 | 333 | | | | 19.10.20 | FD.{Frank Dodd - Bodies}4529 FD.{Frank Dodd - Bodies}4536 FD.{Frank Dodd - Bodies}4522 FD.{Frank Dodd - Bodies}4509 | N front O front N rear O rear | 737 737 | 737 737 | 62 | Local | Average speed 25 M.P.H. - fairly good roads - tyres still noisy. | | 20.10.20 | | | | | | | Car not run. | | 21.10.20 | FD.{Frank Dodd - Bodies}4529 FD.{Frank Dodd - Bodies}4536 FD.{Frank Dodd - Bodies}4522 FD.{Frank Dodd - Bodies}4509 | N front O front N rear. O rear. | 773 773 | 773 773 | 36 | Local | Average speed 25 M.P.H. Fairly good roads. | | 22.10.20 | | | | | | | Car not run. | | 23.10.20 24.10.20 | FD.{Frank Dodd - Bodies}4529 FD.{Frank Dodd - Bodies}4536 FD.{Frank Dodd - Bodies}4522 FD.{Frank Dodd - Bodies}4509 | N front O front N rear O rear | 883 883 | 883 883 | 110 | Local | Average speed 20 M.P.H. Moderate roads. | Vertical text on right margin: R.R. 232A. (M) S IS. II. 1500 11-2-20. G1200 | ||