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 design items and their completion status for the Spectre Chassis.
| Identifier | ExFiles\Box 30\3\ Scan041 | |
| Date | 7th January 1935 guessed | |
| (2) ITEM DESIGN POSITION. SPECTRECodename for Phantom III CHASSIS. Single piston quadruple downdraught carburetter. In hand. External modifications to cylinder head to In hand. facilitate enamelling. Reduced oil feed and improved cylinder head oil In hand. drainage. Modification to exhaust manifolds. In hand. Layout of flat fronted sloping radiator. Completed. Layout of Vee fronted sloping radiator. Completed. Four door close coupled saloon (coachwork drawing). Completed. Water drain for air cooled dashboard. In hand. Layout of cabriolet de Ville (coachwork drawing). In hand. Alternative method of fixing servo fabrics. Completed. Modified transmission shaft to suit semi-servo Completed. braking system. Modified intermediate lever to suit semi-servo Completed. braking system. Larger engine oil pressure pump. In hand. Engine controls to suit Marles steering box. Completed. | ||