Letter from a tyre manufacturer regarding tyre circumference and running pressure.
| Identifier | ExFiles\Box 157\6\ scan0184 | |
| Date | 10th December 1937 | |
| 1336 INDIAProduction 20 HP. with 4-speed box and Front Wheel Brakes TYRE & RUBBER COMPANY, LTD. TELEPHONES: PAISLEY 4141/5 TELEGRAMS: INDIAProduction 20 HP. with 4-speed box and Front Wheel BrakesTYRE, RENFREW. INCHINNAN SCOTLAND OUR REF. PW/HDE. YOUR REF. Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} 2/AP. 10th December, 1937. S. H. {Arthur M. Hanbury - Head Complaints} Grylls Esq., Rolls-Royce Limited, DERBY. Dear Mr. Grylls, We acknowledge receipt of your letter of December 8th. We will get the effective circumference of our 6.50/17 tyre at 90 m.p.h. We note that you are running the new tyre at 28 lbs. per sq. inch. Yours sincerely, INDIAProduction 20 HP. with 4-speed box and Front Wheel Brakes TYRE & RUBBER COMPANY LIMITED. Pane horte. Works Manager. | ||
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).