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 analyse an attached bearing to determine if it is type A.C.2 or A.C.7.
| Identifier | ExFiles\Box 115\3\ scan0265 | |
| Date | 22th July 1938 | |
| 1020 Hl. from Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}4/R.22.7.38. Will you please analyse the attached bearing, and let us know whether it is A.C.2 or A.C.7. Rm.{William Robotham - Chief Engineer} | ||