This is a fabulous old Michigan copper from the Phoenix mine - the old label says it came from the 400 ft. level - the main crystal looks almost like an arrowhead, sticking up dramatically and with chiseled faces on both sides. No telling how old this fine piece is - there are two old India Inked numbers on the bottom from collections it has been through. But regardless, it has really fine and dramatic form and a great antique patina.