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 illustrating four different designs of car starting handles.
| Identifier | ExFiles\Box 113\5\ scan0019 | |
| Date | 1st April 1937 guessed | |
| RR 25/30 & BENTLEY 1 WRAITH III. 2 SOLID HANDLE 3 CHEVROLET 4 | ||