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).
Weekly report sheet documenting the performance and wear of Rapson tyres.
| Identifier | ExFiles\Box 39\1\ Scan157 | |
| Date | 20th July 1924 | |
| WEEKLY REPORT ON RAPSON TYRES - CONTD :- SHEET II. DATE. | TYRE NO'S. | WHERE FITTED. | DAYS RUN. | TOTAL MILES. REAR. | TOTAL MILES. FRONT. | REMARKS. 14.7.24 | YX.63146, YX.63253, YX.63141, YX.63124 | Off rear., Near rear., Off front., Near front. | 0 | 15519, 15519 | 16353, 16353 | All tyres shewing signs of wear. 15.7.24 | " " | " " | 96 | 15615, 15615 | 16449, 16449 | YX.63141 - shewing canvas badly. 18.7.24 | " " | " " | 10 | 15625, 15625 | 16459, 16459 | All tyres taken off. 20.7.24 | " " | " " | 0 | | | Tyres Nos. YX.63146 YX.63253 are double retreads and after 15625 miles, still appear good enough for further running. | ||