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 sheet for Dunlop straight-sided tyres, recording mileage and usage.
| Identifier | ExFiles\Box 45\1\ Scan141 | |
| Date | 3rd November 1920 | |
| TESTS ON DUNLOP STRAIGHT SIDED TYRE 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. 3.11.20 | FD.{Frank Dodd - Bodies} FD.{Frank Dodd - Bodies}4901 FD.{Frank Dodd - Bodies} FD.{Frank Dodd - Bodies}4943 | O front. N front O rear N rear | 35 | 35 | 35 | | Return journey from Messrs Dunlops. (Birmingham) 4.11.20, 5.11.20, 6.11.20, 7.11.20 | FD.{Frank Dodd - Bodies} FD.{Frank Dodd - Bodies}4901 FD.{Frank Dodd - Bodies} FD.{Frank Dodd - Bodies}4943 | O front N front O rear N rear | 455 | 455 | 420 | London and district. | 10.11.20 | FD.{Frank Dodd - Bodies} FD.{Frank Dodd - Bodies} FD.{Frank Dodd - Bodies}4960 FD.{Frank Dodd - Bodies}4943 | O rear N rear | | 40, 495 | 40, Y | | Return journey from Messrs. Dunlops(Birmingham) 11.11.20 | FD.{Frank Dodd - Bodies}4958 FD.{Frank Dodd - Bodies}4901 FD.{Frank Dodd - Bodies}4960 FD.{Frank Dodd - Bodies}4943 | O front N front O rear N rear | 19, 474 | 59, 514 | 19 | Local | 12.11.20 | FD.{Frank Dodd - Bodies}4901 FD.{Frank Dodd - Bodies}4958 FD.{Frank Dodd - Bodies}4943 FD.{Frank Dodd - Bodies}4960 | O front N front O rear N rear | 498, 43 | 538, 83 | 24 | | Tyres changed about. 13.11.20, 14.11.20 | FD.{Frank Dodd - Bodies}4901 FD.{Frank Dodd - Bodies}4958 FD.{Frank Dodd - Bodies}4943 FD.{Frank Dodd - Bodies}4960 | O front N front O rear N rear | 581, 126 | 621, 166 | 83 | | Contd. | ||