First Ever Ultra High Relief. The Beth Zaiken Collection - The Koala 2025 2oz Silver Proof Ultra High Relief Coin is a stunning piece crafted by The Perth Mint in Australia. This 2 oz silver coin with a fineness of 0.9999 features a proof strike type, making it a highly sought-after collector's item. The intricate design of the koala on the coin adds to its appeal, making it a valuable addition to any coin collection. With a total precious metal content of 2 oz, this limited edition coin is sure to be a cherished piece for any numismatist. Limited mintage of 1500