Is there a ref for the war office codes stamped / pressed into the lids of the thinner gauge ammo boxes?
i.e. what would this mean: P60-MG-II-1943
or this: P60-MPB-I-1942
or this: R.T. MP C238A Mk1 1945
At a guess I would suggest that the first part is the box identifier, the second is the description and the third is the manufacture date. What do the descriptions relate to?