If my sources are correct, this anchor once belonged to a great ship called Rex. It was built in Italy in the year 1931 and was the only italian ship that has ever won the blue ribbon.
During world war 2, the ship got sank just off shore of Piran, a small sea-side town in Slovenia and the remains of the ship are still there and can in fact be visible with a naked eye when the tide is low.
The anchor however, got transported back to Ljubljana and stands as a monument of the annexation of the Primorska to Slovenia.
Where it remains to this day.