Gold Bullion Bars & Rounds. Platinum Bullion Bars & Rounds. Silver Bullion Bars & Rounds. US Mint Silver Medals. 2022 Black Proof Samoa Silver King Arthur 4-Coin Set (Box + CoA). Issued in 2022 by the country of Samoa! Limited mintage of 999 coins! Set of 4 coins contains 4 troy oz of. Obverse features […]