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).
Photograph of a fractured pivot pin from a Bentley III bumper chassis after endurance testing.
| Identifier | ExFiles\Box 119\1\ scan0140 | |
| Date | 15th September 1938 guessed | |
| BENTLEY III BUMPER CHASSIS - FRACTURED PIVOT PIN FB.3682 - AFTER 50 HOURS TEST ON 3" CAMS AND 30 HOURS ON BRAKE TORQUE RIG. | ||