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).
Table detailing the types, locations, and quantities of lubrication meter valves for the Spectre chassis.
| Identifier | ExFiles\Box 141\2\ scan0114 | |
| Date | 30th August 1935 | |
| Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}6/KW.30.8.35. SpectreCodename for Phantom III Chassis Lubrication Meter Valves: Section | Type of Valve | Where Used | No.off. --- | --- | --- | --- Oil Piping and Fittings. | ZS5 | Road Springs, rear shackles. | 2 | ZE3 | Road Springs, front pins. | 2 | ZE1 | Steering Column. | 1 | ZS1 | Pedal Shaft. | 1 | ZE1 | Rear Stabilizer. | 2 | ZE1 | Front Stabilizer. | 2 | ZE2 | Front cross member cross shaft. | 2 Flywheel and Clutch. | ZT1 | Clutch operation Shaft. | 2 | ZSO | Rear cover clutch casing. | 1 Change Gear and Brake Mechanism | ZSO | Rear brake inter.levers. | 1 Rear Brake Inter. Shaft. | ZSO | Fulcrum Shaft. | 1 | ZEO | Hand brake inter. shaft bracket. | 2 Front Brake Inter. Shaft. | ZSO | Damper cylinder | 1 | ZTO | Bearing Bracket. | 1 | ||