Then King Ahaz went to Damascus to meet Tiglath-Pileser king of Assyria. He saw an altar in Damascus and sent to Uriah the priest a sketch of the altar, with detailed plans for its construction. (NIV)
King Ahaz went to Damascus to meet Tiglath-pileser king of Assyria, and saw there their [heathen] altar. King Ahaz sent to Urijah the priest a model of the altar and an exact pattern for its construction. (AMP)
And king Ahaz went to Damascus to meet Tiglathpileser king of Assyria, and saw an altar that was at Damascus: and king Ahaz sent to Urijah the priest the fashion of the altar, and the pattern of it, according to all the workmanship thereof. (KJV)