
This is a standard fuse, frequently known as "Bickford's", which is used for Detonators No. 25. The rate of burning is approximately 2 feet per minute. This fuse is of larger diameter than No. 11, or No. 100, and when used with Briska Detonators No. 6, the outer layer must be peeled back before the fuse can be inserted in the detonator.
No information about functioning.
Nothing else to see.
OP 1665, British Explosive Ordnance (1946)