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 diagram showing cracks in an off-side roll rod main lever after extended mileage.
| Identifier | ExFiles\Box 91\2\ scan0410 | |
| Date | 10th September 1937 guessed | |
| ROLL ROD MAIN LEVER F 89109 - SN{Mr Sanderson} OFF SIDE Ex1.225 SMALL CRACKS HERE Ph III 32 Ex After 17.110 Miles In France CRACKS IN ROLL ROD LEVER. Ex1.225 | ||