[Lynn Eades]

Or for various reasons they may have reverted to the shallower box or even never used them? (the deep ones) On the earlier pre Universal carriers, the box in question was originally designated for Bren Gun Spares (they carried more than one gun) Then later it is a Crew locker. Maybe the British soldier was expected to need less space than a Canadian soldier? Maybe it was due to a more consistent supply line in the more concentrated theatre of the later stages of war in Europe? All just food for thought.