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 'Rapson' tyre positions and numbers for vehicle 98 NK.
| Identifier | ExFiles\Box 39\1\ Scan110 | |
| Date | 16th June 1924 guessed | |
| POSITIONS AND NUMBERS OF "RAPSON" TYRES ON 98 NK. R.R. N°S. | MAKERS COVER N°. | MAKERS TUBE N°. | WHERE FITTED. | REMARKS. 1. | XO. 82424. | 68521 | N.S.F. | 2. | XO. 82414. | 68497 | O.S.F. | 3. | XO. 82327. | 68502 | Spare. | Replaced N°5 on OSR. 4. | XO. 82437. | 68520 | Spare. | 5. | XO. 82301. | 68139. | N.S.R. | Punctured after 2480. 6. | XO. 82336. | 68190. | Spare. | Not yet arrived. 7. | XO. 82321. | 68244. | O.S.R. | 8. | XO. 82308. | 68305. | Spare. | Not yet arrived. M Hickey | ||