Bofors 40mm Spare barrel box question???

[Hanno Spoelstra]

Originally Posted by Alex van de Wetering

I also see the "C428" on the paper on the lid, which I presume is the official name of the barrel box.

I did quick search on the British Ordnance Collectors Network site but could only find C219, which is the designation for the 40 mm ammunition box for 40mm QF Bofors: https://www.bocn.co.uk/threads/c219-...-bofors.12441/