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 and part references for various vehicle mechanisms.
| Identifier | ExFiles\Box 169\1\ img048 | |
| Date | 14th April 1930 | |
| (6) RHC{R. H. Coverley - Production Engineer}/WSC{W. S. Cassel}1/MS14.4.30 Servo Mechanism to L.O.P. G.78321 - N.S.2988 Damper for Brake Gear. G.77583/4 Cams 35°. Cotton "A" fabrics secured to pressure plates by staples in place of copper tubular rivets. 2nd. Motion Shaft to L.O.P. G.76615. Reverse Gear to L.O.P. G.76676. Servo Drive to L.O.P. G.76740. Servo Countershaft to L.O.P. G.76821. Speedometer Drive to L.O.P. G.77490. Starting Handle to L.O.P. E.77678. RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel} | ||