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 showing the overhang for an upset axle.
| Identifier | ExFiles\Box 111\4\ scan0007 | |
| Date | 10th December 1937 guessed | |
| OVERHANG FOR UPSET AXLE Tyre Wheel 6.50 x 17 '52" TYPE HUB 1'-9" ¢ VAUXHALL WHEEL | ||