Sketch detailing the failure of a Cadillac torsion arm at 11,482 miles, noting flaws in the material.
| Identifier | ExFiles\Box 125\2\ scan0220 | |
| Date | 16th January 1935 | |
| Chateauroux(French test region) 16/1/35 broken clean break flaws torsion arm Cadillac 11,482 miles | ||
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).