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).
Log of tyre mileage and vehicle journeys.
| Identifier | ExFiles\Box 45\1\ Scan156 | |
| Date | 29th November 1920 | |
| Contd. -2- Date. | Tyres fitted. | Position on Car. | Total mileage. | Daily miles. | Route taken. | Remarks. | | | F.{Mr Friese} | R.{Sir Henry Royce} | | 25.11.20 | FD.{Frank Dodd - Bodies}5102 | N front | 785 | | 14 | Local run. | | FD.{Frank Dodd - Bodies}5117 | O front | 785 | 785 | | | | FD.{Frank Dodd - Bodies}5099 | N rear | | 785 | | | | FD.{Frank Dodd - Bodies}5090 | O rear | | | | | 27.11.20 | FD.{Frank Dodd - Bodies}5102 | O front | 899 | | 114 | Derbyshire. | Average speed 28.11.20 | FD.{Frank Dodd - Bodies}5117 | N front | 899 | 899 | | | 25 M.P.H. | FD.{Frank Dodd - Bodies}5099 | O rear | | 899 | | | | FD.{Frank Dodd - Bodies}5090 | N rear | | | | | 29.11.20 | FD.{Frank Dodd - Bodies}5102 | O front | 924 | | 25 | Local run | | FD.{Frank Dodd - Bodies}5117 | N front | 924 | 924 | | | | FD.{Frank Dodd - Bodies}5099 | O rear | | 924 | | | | FD.{Frank Dodd - Bodies}5090 | N rear | | | | | FOR ROLLS-ROYCE LTD. R.R. D5A 129 T (S.H. 159. 11-9-20) G 8879 | ||