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).
Specifying the fusing current limits for fuse wire.
| Identifier | ExFiles\Box 61\2\ scan0350 | |
| Date | 11th August 1920 | |
| BY/Mtn. X.2575 Re. - Fuse Wire 11.8.20 Fusing current limits for .65" length should be given as 4½ - 5½ amperes. EFC. | ||