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).
From R. to C.J. regarding the use of Dunlop tyres on Michelin disc wheels and advocating for security bolts.
| Identifier | ExFiles\Box 81\1\ scan0159 | |
| Date | 15th April 1920 | |
| x990 COPY. To CJ. from R.{Sir Henry Royce} RL/G15.4.20. My dear CJ., x990✓ X3482 X.3895✓ Re Dunlop Tyres on Michelin Disc wheels. CJ10/D9.3.20. This supports my. contention that high speed and power cars should have tyres fitted with security bolts. I am using American straight sided tyres and think they are very good indeed, as far as I have seen them. Nothing else I think should be used on American cars, where such tyres are available. Our makers seem behind, unless I am mistaken. Yours ever, sgd. R.{Sir Henry Royce} R R 235 B (200 T) (S.F. 674 22-5-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2376. | ||