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).
Request to order two dozen Neuprene bushes with specific dimensions and hardness from the British Tyre company.
| Identifier | ExFiles\Box 158\4\ scan0248 | |
| Date | 22th June 1938 | |
| 1360 To Roy.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. G/JWH. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}6/MH.{M. Huckerby}22.6.38. Will you please order two dozen "Neuprene" bushes to the following dimensions from the British Tyre, one dozen to have a Durometer hardness of "65" and the remainder "75". Outside diameter .812" Bore of centre hole .500 Thickness .437 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||