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).
Diagram of a 25 HP Rear Brake Actuating Shaft.
| Identifier | ExFiles\Box 5a\3\ 03-page071 | |
| Date | 17th December 1931 guessed | |
| [ "25 HP REAR BRAKE ACTUATING SHAFT", "DESIGN FAIL AT THIS POINT INSTEAD OF RUNNING BACKWARDS OFF ENGINE" ], | ||