Close-up photograph showing a complex welded joint on a heavy metal chassis or frame component.
| Identifier | ExFiles\Box 99\2\ scan0169 | |
| Date | 4th March 1938 guessed | |
| No text is visible on this photographic document. | ||
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).