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).
Continued list of numbered specifications for various vehicle components.
| Identifier | ExFiles\Box 69\3\ scan0327 | |
| Date | 6th October 1925 guessed | |
| contd :- -2- (13) Subframe side levers N.sch. 1870 (14) Sheet steel wing stays N.sch.1824. (15) Dipping head lamps - RR. type. N.schs.1824 1855. (16) Springs of superior manufacture. (a) Improved heat treatment. (b) Surfaces ground all over. (17) Bonnet with wearing strips G.2. catches and revised open type handles. (18) 57" track at rear - xxxxx (spring centres unaltered). Front axle is 57" from 'U' series. (19) Shock dampers. Either of the hydraulic types already designed, or of a more lasting friction type of which a design has yet to be made. A design will also be made of an hydraulic type with a horizontal double piston. R.{Sir Henry Royce} | ||