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).
List of various tyres and tubes sent to the Test Department for evaluation.
| Identifier | ExFiles\Box 30\5\ Scan176 | |
| Date | 11th December 1935 | |
| HS{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies}23/KW.11.12.35. Tyres sent to Test Dept. No. | Size | Make | Value 7 tubes 7 tyres | 7.00 x 18 | Goodrich "Safety" | 100% 5 tyres | 7.00 x 18 | Firestone | 100% 6 tyres 6 tubes | 7.00 x 18 | Avon "Supreme" | 100% 6 tyres | 7.00 x 18 | Dunlop "Triple Stud" | 100% 7 tyres | 7.00 x 18 | India | 100% 4 tyres 4 tubes | 7.00 x 18 | India. These tyres came from London by train 9.12.35. | 80% 5 tyres | 7.00 x 18 | Dunlop "Silent" | 100% 2 tyres | 7.00 x 18 | | 20% 11 tyres | 7.00 x 18 | Michelin "Stop" | 7. 80% | | | 4. 10% 2 tyres | 7.00 x 18 | Goodyear | 100% 5 tyres | 5.50 x 18 | India "Non-skid" | Average 45% 1 tyre | 5.50 x 18 | Goodrich | 100% TOTAL: 61 Tyres. | ||