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).
Sketches showing Near Side (N.S.) and Off Side (O.S.) tyre tread patterns for Avon Tyres.
| Identifier | ExFiles\Box 97\5\ scan0051 | |
| Date | 6th February 1939 | |
| N.S. OS Avon Tyres. Letter Rm{William Robotham - Chief Engineer}/IMW{Ivan M. Waller - Head of Chateauroux} 6-2-39 BENTLEY ARCHIVES | ||