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).
Specification list for the 7.EX 'W' Series chassis placed on test in June 1925.
| Identifier | ExFiles\Box 72\2\ scan0132 | |
| Date | 16th July 1925 | |
| X8992 To TMW from RHC.{R. H. Coverley - Production Engineer} RHC{R. H. Coverley - Production Engineer}6/BE. 16.7.25. RE 7.EX CHASSIS The above Chassis which represents "W" Series was placed on Test Sunday June 21st. 1925. and built up to the following specification:- X.8310 -Gear Box & Act: Gear to L.O.P. G.73352. X.8370 - Servo Mech: to L.O.P. G.72550. X.8310 - Speedometer Drive to L.O.P. G.71411. X.8310 - 1st & 3rd Motion Shaft to L.O.P. G.73420. X.8310 - 2nd Motion Shaft Torsionally free 1st & 2nd Speed Pinions with Standard Splines to LeC 2021. X.8310 - Reverse Gear to L.O.P. G.72780. X.8320 - Change Gear & Brake Mech: N.Scheme 2001 with .050 clearance in the Change Speed Gate - to L.O.P. G.73565. X.8330 - Hand Brake Equal: Mechm. to L.O.P. G.2991. X.8330 - Foot Brake Equal Mech: to L.O.P. G.72695. X.8330 - Front Brake Equal Mech: to L.O.P. G.73224. -contd- | ||