Actually, they were more likely of the tribe of Dan, if these artifacts predate the captivites of the mid first millenium B.C. The tribe of Dan were the ship builders and explorers of the 12 tribes. That's why there's a trail through Europe from the Caucusus to Ireland with rivers, town, and countries named after the tribe of Dan. Before they set out on foot after the first captivity, they overtook the Phoenicians in exploring a big part of the world in ships.
Might the Phoenicians and the Tribe Of Dan be the same folks?