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).
Modification of the S.S. Chassis switchbox.
| Identifier | ExFiles\Box 65\2\ scan0020 | |
| Date | 31th January 1929 | |
| x7730 TO RMU C. EFC. BY/RD5/ML.31.1.29. S.S. CHASSIS - SWITCHBOX - SEC:8160. Now that the Green Lamp Unit is not to be used on the production cars we are modifying the standard switchbox to give M & B without C. Will you please put 2 switchboxes in hand to L.O.P. D.72007 which consists of taking a standard production box and altering one or two parts and fitting the special parts as follows:- D.72000 - Switch Body. D.72001 - Bus Bar. D.72002 - Stop Plate (Mag:Contact). D.72012 - Bolt - Magneto Contact. D.72013 - Magneto Contact Terminal. D.72014 - Angle Plate for Cable Eye (Mag:Contact Terminal). D.72015 - Contact Maker (Mag:to Earth). D.72016 - Brush Stamping. D.72017 - Brush Assembly. D.72018 - Screw - Battery Earth Brush. D.72007 - L.O.P. (3 sheets). [STAMP: RECEIVED 31 I 1929] BY/RD. | ||