The coin in question is a 2006 Sacagawea Dollar, produced by the Philadelphia Mint, denoted by the mint mark 'P'. This coin is part of the USD currency series and is classified under the sub-type of Coins. Featuring a composition of manganese-brass, it has a weight of 8.07 grams and a diameter of 26.5 mm. The Sacagawea Dollar is notable for its distinct design, which pays tribute to Sacagawea, the Shoshone woman who played a crucial role in the Lewis and Clark Expedition. The coin showcases an image of Sacagawea carrying her infant son on one side, while the reverse typically depicts a soaring eagle or other symbolic features. With a mintage of 4,900,000 units, this particular coin demonstrates collectible value, depending on its condition and market demand. While the coin is legal tender with a denomination of $1, its numismatic value may differ significantly based on grading and collector interest. Whether kept as a part of a collection or held for its face value, the 2006 Sacagawea Dollar represents an important piece of American heritage and currency history.