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).
Gathering further impressions on the springing of a Sedanca, with and without special hydraulic damper springs.
| Identifier | ExFiles\Box 67a\2\ scan0158 | |
| Date | 21th August 1928 | |
| S/W. (Hs{Lord Ernest Hives - Chair}) X8410 PN.{Mr Northey}3/WT21.8.28. SPRINGING. In reply to your Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG.20.8.28., as you suggest I will get further impressions sitting in the back of the Sedanca in London streets and parks, both with and without special hydraulic damper springs, which will finally be returned to you. PN.{Mr Northey} W.T. | ||