BS1362 Cartridge Fuses.
A small cardboard box which originally contained one dozen fuses. MK catalogue number 609.
These are BS1362 cartridge fuses, as used in BS1363 plugs and various other things such as fused spur boxes.
A less common 10 Amp variety, these are coloured yellow and have black printing.
Note how the metal end caps are split - either due to age, or just shoddy manufacturing.
For use in Plugs etc. for two-wire A.C. circuits not exceeding 250 volts.
Made in England.
The red/brown marks on the box are rust, from where this box of fuses was stored in a rusty old tin.