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).
Photograph displaying 3 Layer Vandervell Main Bearings.
| Identifier | ExFiles\Box 115\2\ scan0451 | |
| Date | 5th April 1939 guessed | |
| 3 Layer Vandervell Main Bearings. | ||