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).
Test impression of a well-worn Goodrich material sample, likely a tire tread.
| Identifier | ExFiles\Box 42\5\ Scan036 | |
| Date | 1st August 1923 | |
| X/3895 Goodrich. Well WORN 45 lbs/D" L 6.9" Aug, 1923 | ||