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).
Cross-section drawing of an axle component with handwritten annotations detailing modifications.
| Identifier | ExFiles\Box 5a\3\ 03-page277 | |
| Date | 11th June 1933 | |
| 11/6/33 section of axle hole drilled here to feed direct. broad aluminium washer to cover of hole. This complete part dispensed with. These two faces stopped up. PERFECT | ||