Design for stiffening ribs for a clutch cover plate.
| Identifier | ExFiles\Box 130\3\ scan0152 | |
| Date | 31th December 1940 | |
| STIFFENING RIBS FOR CLUTCH COVER PLATE WELD 3 STIFFENING RIBS. P.m./G 13. 31/12/40 | ||
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).