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).
Confirming updated car engine numbers.
| Identifier | ExFiles\Box 138\3\ scan0314 | |
| Date | 18th January 1937 | |
| 1162 To D/L. from Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}25/AP.18.1.37. Car Engine Nos. In reply to your memo D/AN4/G.15.1.37. will you please note that the engine number of 6.B.4. is B.4. and B.56.BN.{W.O. Bentley / Mr Barrington} unit is now B.22. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} | ||