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).
Sketch illustrating the recommended direction for a specific tyre tread pattern.
| Identifier | ExFiles\Box 157\1\ scan0071 | |
| Date | 24th September 1932 | |
| SKETCH No. DS. 4418 THE ARROW SHEWS THE RECOMMENDED DIRECTION OF TREAD PATTERN WHEN LOOKING ON PLAN OF TYRE DIRECTION OF TRAVEL M.R.Q. TREAD PATTERN PRODUCT DESIGN DEPT FORT DUNLOP 24.9.32. | ||