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).
Drawing showing an alteration to the Armstrong front brake damper arm.
| Identifier | ExFiles\Box 98\4\ scan0145 | |
| Date | 11th March 1940 guessed | |
| 0.375 ALTERATION TO ARMSTRONG FRONT BRAKE DAMPER ARM. | ||