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 showing two views of a mechanical component with a roller and dimensional annotations.
| Identifier | ExFiles\Box 15\5\ Scan289 | |
| Date | 9th May 1932 guessed | |
| Hs{Lord Ernest Hives - Chair} 603, .400 DIA, .200, .250, 48° | ||