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).
Hand-drawn sketches showing cross-sections of bearings or mechanical housings.
| Identifier | ExFiles\Box 94\2\ scan0186 | |
| Date | 10th March 1937 guessed | |
| P.L.H.S Bearing 1 1/2" Gre. Bearing 40 m/m Gre | ||