Set of 4 oz Triangular Australian Shipwreck coins series 4oz Fine Silver 999. New condition in capsule. 1 oz Batavia 2019 – 20000 mintage. 1 oz Zuytdorp 2020 – 20000 mintage. 1 oz Vergulde Draeck 2020 – 20000 mintage. 1 oz Zeewijk 2021 – 20000 mintage.