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).
Design progress report listing modifications and their statuses for the Spectre chassis.
| Identifier | ExFiles\Box 30\3\ Scan011 | |
| Date | 17th November 1934 guessed | |
| (2). ITEM. DESIGN POSITION. ----------------------------------------------------------- "SPECTRECodename for Phantom III CHASSIS - CONTINUED. Vacuum control for ignition distributors. In hand. External modifications to cylinder head to facilitate enamelling. In hand. Alternative front appearance. In hand. Reduced oil feed to valve gear and improved cylinder head oil drainage. In hand. Filter for auto adjusting tappets - final scheme. Completed. Modified variable rating front suspension. Put aside. Improved silencer and battery box ground clearance. Completed. Modification to exhaust manifolds. In hand. Increased ground clearance.- silencer front end. Completed. Instrument patch to suit veneered instrument board. In hand. Marles steering. In hand. Rear engine mounting, to suit new type clutch. Completed. Baffle for oil sump. Completed. Ignition distributor mouldings. Completed. Headlamp and wing stay support - (2nd. chassis). Completed. Modified radiator. (2nd. chassis). Completed. Exhaust fittings arrangement and ground clearances. Completed. | ||