It's an ordinary circulation coin made of brass, not gold. About 1 billion of them were minted and they're only worth $1.
MoreThe portrait on the front of the coin is an interpretation of Sacagawea (or Sacajawea), the famed Native American woman who guided the Lewis and Clark expedition during part of the journey across North America. There are no known pictures of Sacagawea so the artist, Glenna Goodacre, used a Native American college student as her model.
"Liberty", "E Pluribus Unum"These mottoes appear on all US Coins so they aren't specific to identifying any denomination, date, or design.
