The coin in question is an American Innovation Dollar, a series that celebrates innovation and recognizes the contributions of individuals and events in American history. This particular coin was minted in 2018 and features a proof finish, which gives it a highly polished, mirror-like appearance that enhances the intricate details of the design. As there is no mint mark, it could originate from any of the mints that produced coins within this series, although the specific mint is not identified. The denomination is set at one dollar (USD), which is the standard face value for these coins. Notably, this coin does not have specified measurements for width, height, or diameter, and its weight is also listed as zero. This may indicate that the details are either unavailable or not applicable, but generally, American Innovation Dollars are approximately 26.5 mm in diameter and weigh about 8.1 grams. This coin represents the United States of America and is categorized under the broader type of currency classified as Coins. Its production type being "Proof" implies that it was made with additional care and quality control, making it a desirable collectible for numismatists. While the mintage is also listed as zero, it typically indicates that the exact production numbers for this particular coin are currently unknown. Collectors often seek coins from specific years or with particular traits, and the American Innovation Dollar series is especially popular due to its thematic significance. In conclusion, this 2018 American Innovation Dollar coin is a notable piece representing American history and innovation, crafted with a proof finish for collectors and enthusiasts alike.