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).
Blueprint showing a cross-section of a 20 HP rear shock damper.
| Identifier | ExFiles\Box 105\3\ scan0051 | |
| Date | 22th December 1928 guessed | |
| A A F74879 F74896 20 H.P. REAR SHOCK DAMPER | ||