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 Spectre shock damper spring after a running test.
| Identifier | ExFiles\Box 95\3\ scan0176 | |
| Date | 7th November 1935 | |
| SPECTRECodename for Phantom III Shock Damper Spring. Firths C.83271 3" Cams. Running Time 22 hrs.45 mins 7-11-35 | ||