first of all, i’m new here and would like to say hi to all members of this forum!
recently i have found this empty shell in my garden while digging something. im from a small harbour town of Rijeka, Croatia and considering the historic facts about this area i assume its an ww2 era piece. during the 40’s fascists occupied the town and splitted it into half along the river creating Italian Fiume and Yugoslavian Sušak. my house is on the previous borderline Yu side and was a strategic point for Partisans so…
…I would much appreciate if someone could ID the marking for me (i’m no collector, just curious about it ;)