The Golden State Mint 1/2 AVDP oz Copper Round — GSM Eagle Head is a verified fractional private-mint round produced in .999 fine copper. GSM identifies its Eagle Head product as a non-monetised copper round made in the United States, with 32.60mm diameter, 2.48mm thickness and tube presentation. Its AVDP half-ounce label is represented in BT as approximately 0.4553 fine troy oz of copper.