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).
Blueprint for a road wheel with material and weight specifications.
| Identifier | ExFiles\Box 170\1\ img011 | |
| Date | 1st May 1914 guessed | |
| TO BE ANODISED ALL OVER BEFORE PAINTING ALUMINIUM WHEEL AS DRAWN WEIGHS 11 LBS. STEEL WHEEL OF APPROX. SAME STRENGTH WEIGHS ROAD-WHEEL 5.50 - 16 TYRE | ||