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).
Telegram confirming the successful test of a Bentley bumper bar.
| Identifier | ExFiles\Box 118\2\ scan0121 | |
| Date | 26th November 1934 | |
| ROYCAR DERBY ANGLETERRE = RM{William Robotham - Chief Engineer} BENTLEY BUMPER BAR TEST OK NINETYFIVE PERCENT CURE SLEATOR ++ RM{William Robotham - Chief Engineer} | ||