The coin in question is an American Liberty Gold coin issued in 2021, with a denomination of $100. It is notable for its proof production type, indicating that it was struck with particularly high-quality standards, resulting in a mirror-like finish that enhances its visual appeal. This coin features a diameter of 30.6 mm and is made of 99.99% gold, signifying its status as a premium precious metal coin. Its mintage is limited to just 12,500 pieces, making it a relatively rare collectible within the series. Designed without a specific designer or mint mark, this coin represents the United States of America and is part of the esteemed American Liberty Gold series. It has no defined width, height, or weight parameters listed, which may reflect its design attributes or specific packaging. As a collectible item, this coin is created for both numismatists and investors who appreciate the craftsmanship of proof coins and the intrinsic value of gold. Given its limited mintage and high gold content, it likely holds significant value in the current market.