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).
List of modifications for the 'Second Spectre'.
| Identifier | ExFiles\Box 4\1\ 01-page112 | |
| Date | 21th September 1934 guessed | |
| SECOND SPECTRECodename for Phantom III ① PII type silent tappets ② Two inlet-cam camshaft ③ Improved manifolds ④ Aerolite pistons ⑤ Improved water circulation ⑥ Borg & Beck material on Clutch ⑦ Corrected rotor cam keyway ① Exhaust System | ||