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).
Cost-saving analysis regarding plating the steering tube sleeve versus the whole tube for 25/30HP and Phantom III models.
| Identifier | ExFiles\Box 95\1\ scan0378 | |
| Date | 13th January 1937 | |
| 350 F.T. HARDY. To Rm.{William Robotham - Chief Engineer} from G/Rb.{R. Bowen} G/Rb.{R. Bowen}7/M/71/W.18137. 25/30HP. and Phantom III Outer Steering Tubes. SEC. 7050. In reply to your Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}7/AP.13.1.37. Will you please note that if only the Steering Tube Sleeve (F88190) is plated instead of this and the whole length of the tube, we estimate a saving in factory cost of approximately 15/- per chassis. In other words, we estimate the cost of chromium plating the sleeve, together with the cost of black enamelling the whole length of outer steering tube to be approximately 5/-. G/Rb.{R. Bowen} [Signature] | ||