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).
Sketch showing a crack in the lower half of a component, noting total mileage.
| Identifier | ExFiles\Box 101\2\ scan0258 | |
| Date | 9th March 1937 guessed | |
| Ex I 136 CRACK APPROX 1.750 LONG TOTAL MILEAGE 30,198 INCLUDING 28,923 MILES IN FRANCE SKETCH SHOWING CRACK IN LOWER HALF. C17 Ex I 136 | ||