The coin in question is a 2023 Sacagawea Dollar, which is part of the series that honors the Native American woman who played a crucial role in the Lewis and Clark Expedition. This particular coin is a Proof coin, which means it was struck with a special process that gives it a high-quality finish and a mirror-like surface, making it particularly desirable among collectors. This Sacagawea Dollar features a diameter of 26.5 mm and is made of a composite material consisting of 77% copper, 12% zinc, and 1% other metals over a pure copper core. Despite having a mintage value of 0 and no specific mint mark associated with it, the coin represents a modern tribute to American history. As there is no specified weight or distinct edge type given, we focus on its visual appeal and craftsmanship, which is typical of Proof coins. The absence of a weight and dimensions in the conventional sense may indicate that this specimen is potentially uncirculated or part of a collectible set. Overall, while it retains its legal tender status of $1, this Proof Sacagawea Dollar is more valued for its aesthetic and collectible characteristics rather than its face value. Whether you're an avid collector or a casual enthusiast, this coin embodies both history and artistry from the United States of America, making it a noteworthy addition to any collection.