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 sheet detailing specifications and notes for various tyre sizes and makes.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page129 | |
| Date | 1st August 1919 guessed | |
| TYRES. 935 X 150 nom. dia 36.8 Circ. | dia | Price | Miles | Type | Make 114 1/4 | 36.4 | | (7357 Oct 1/2 R) | S.S. | Continental TYRES 895 X 150. nom. dia 35.2 110 1/2 in | 35.2 | (5667 F x R Oct all worn) | | Ribbed | Spencer Moulton 108 3/8 | 34.5 | (4058 R heavy L. hvy) | | S.S. | Contntl. 108 3/8 | 34.5 | (Ditto) | | Ribbed | Contntal TYRES. 880 X 120 nom dia 34.6 108 1/2 | 34.6 | 8000 lims | | Plain | Michelin | ||