I picked this pouch up yesterday which I thought was interesting. Like most things it has a bit of a vague story. It belonged to the Vendors uncle who went through the war from 1939 to 1945 and served in Sicily and Italy in the Royal artillery.
The pouch was originally divided into 3 sections approx 25mm x 30mm.
It is marked CA 1941 and C/|\51.
Any clues ? Their is one on Ebay NOS which is marked up as a Sten Ammo pouch with a question mark and admits he doesn't know what it is for.