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).
Blueprint comparing the effectiveness of two different column stay attachment designs.
| Identifier | WestWitteringFiles\S\March1928-May1928\ Scan011 | |
| Date | 8th March 1928 guessed | |
| [ "COLUMN STAY ATTACHMENT", "HEAVY TUBULAR STAY ATTACHED", "TO DASH CLOSE TO COLUMN SUPPORT", "VERY EFFECTIVE", "TUBULAR SECTION", "L SECTION", "LIGHT SHEET METAL STAY,", "NOT MUCH GOOD" ], | ||