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).
The material specification for a Bentley Cylinder from The Midland Cylinder Co.
| Identifier | ExFiles\Box 86\1\ scan0231 | |
| Date | 26th January 1937 | |
| 219. To Roy.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews}20/AP.26.1.37. BENTLEY CYLINDERS. We have recently had machined a Bentley Cylinder from The Midland Cylinder Co. and would like to know the specification of the iron used. We believe it is their Chromidium iron, but we have no particulars of it and possibly you may be able to supply them. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} | ||