Similar Material it-1 “Copper, Brass, Bronze” Copper Aid to Bible Understanding Brass Aid to Bible Understanding ‘Out of the Mountains You Will Mine Copper’ The Watchtower Announcing Jehovah’s Kingdom—2013 Bronze Aid to Bible Understanding Copper—Man’s Long-Time Servant Awake!—1973 The Biggest Man-Made Hole in the World Awake!—1993 Brass Insight on the Scriptures, Volume 1 Bronze Insight on the Scriptures, Volume 1 Copper Serpent Aid to Bible Understanding Copper Serpent Insight on the Scriptures, Volume 1