Here's one that might be fun! If we could get the data plate info first, the other might fall into place easier as it might have instructions. The item looks like it might be container for some kind of artillery round - might be IJN
Your time and help is greatly appreciated!
larger main Data Plate:
just above data large plate near a latch or handle :
Your time and help is greatly appreciated!
larger main Data Plate:
just above data large plate near a latch or handle :
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