I thought historians consider the Italian peninsula to have still been stone age in those days.
That “bronze and iron” dagger has me wondering. Was it pattern-welded bronze and iron layers like damascus steel?
Probably there are iron parts (along with the gold decorations) as well as bronze parts. But anyway, no, the Italian peninsula wasn’t in a stone age then. The Mycenaean Greeks put colonies in and/or traded with various places in Sicily and Italy, and IMO, they were following the precedent set by the Minoans, whom they supplanted in the Aegean, Cyprus, and trading centers in Anatolia.