Photograph showing a broken inlet valve spring and washer from a Bentley GO No.1 unit.
| Identifier | ExFiles\Box 124\1\ scan0017 | |
| Date | 23th February 1939 guessed | |
| BENTLEY GO No.1 UNIT. Inlet Valve Spring & Washer after 68 hrs. Running. | ||
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).