Close-up photograph of a suspension or brake component with a tag labelled '1' inside a brake drum.
| Identifier | ExFiles\Box 99\2\ scan0165 | |
| Date | 4th March 1938 guessed | |
| 1 | ||
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).