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 sketch illustrating wear on a pulley-like component.
| Identifier | ExFiles\Box 1\4\ B001_X 100a-page053 | |
| Date | 21th November 1932 | |
| 21/11/32 Decreased .004" wearing on these surfaces F100254 | ||