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 one pair of B.III springs from supplier Thos. Firth with revised specifications.
| Identifier | ExFiles\Box 100\1\ scan0167 | |
| Date | 9th June 1938 | |
| 446 Roy.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} c.c. G/MFH. Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale}4/R.9.6.38. B.III SPRINGS. Will you please order from Thos. Firth, one pair of springs similar to F.B.3639, for 1,000 lbs load only with 7.000" free camber instead of 6.000", spring flat under load, as now. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} | ||