2 Chronicles 8:17-18

17Then Solomon went to Ezion Geber and Elath on the coast of Edom. 18And Hiram sent him ships commanded by his own men, sailors who knew the sea. These, with Solomon’s men, sailed to Ophir and brought back four hundred and fifty talents That is, about 17 tons or about 15 metric tons of gold, which they delivered to King Solomon.