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).
The weights of a Rudge-Whitworth disc wheel and a wooden wheel.
| Identifier | ExFiles\Box 3\3\ 03-page100 | |
| Date | 1st January 1907 guessed | |
| H.R. 116 (2) g117 C&S 11.10.10 100. y400^x200 Weight Details 1 - Rudge Wh. disc wheel 895^x135 - 32 lbs. 1 " " wooden 935x135 - 46 lbs. | ||