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).
Note on the process of hammering and filing countersunk rivets in sheet aluminium.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan107 | |
| Date | 26th November 1930 guessed | |
| (2) hammering near the countersunk head which is on the outside, and which is made slightly proud of the surface and then filed up. We think that with their light duty there will be no distortion or movement between the rivets and the sheet aluminium. R.{Sir Henry Royce} | ||