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).
The build requirements for the steering column, including alternative materials.
| Identifier | ExFiles\Box 111\3\ scan0126 | |
| Date | 14th August 1939 | |
| 800b. To HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} from Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}1/MH.{M. Huckerby}14.8.39. 3.B.50 STEERING. The steering column of the above chassis should be built up to LOP.FB.4433 except that the box can be of alum if a bronze or malleable iron one is not available. The yokes should be to ExS.1610/11. hm{Capt. W. Hallam - Head Repairs}/FJH.{Fred J. Hardy - Chief Dev. Engineer} | ||