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).
Reference note regarding a Cartridge type field fuse.
| Identifier | ExFiles\Box 166\7\ img005 | |
| Date | 1st January 1931 | |
| X.6071. 1.1.31. For previous matter relating to Cartridge type field fuse see X.4629. | ||