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).
Official order for 6 needles marked L.B.2 from the S.U. Co. of Birmingham.
| Identifier | ExFiles\Box 149\4\ scan0117 | |
| Date | 19th November 1936 | |
| 1263 To Roy.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} c. to G/JWH. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}17/AP.19.11.36. Will you please send an official order to the S.U. Co. of Birmingham for 6 needles marked L.B.2. These have been ordered by letter. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||