Sketch detailing the recommended direction for a tyre tread pattern.
| Identifier | ExFiles\Box 157\1\ scan0068 | |
| Date | 24th September 1932 | |
| 15 SKETCH No DS 4418 THE ARROW SHEWS RECOMMENDED DIRECTION OF TREAD PATTERN WHEN LOOKING ON PLAN OF TYRE DIRECTION OF TRAVEL. MA2 TREAD PATTERN PRODUCT DESIGN DEPT FORT DUNLOP 24/9/32 Jea. | ||
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).