The United States $1 Gold coin, first minted in 1849, is a small denomination gold coin that was primarily struck for circulation between 1849 and 1889. The design typically features a depiction of Lady Liberty on the obverse and an eagle on the reverse. The 1851 issue, part of the Type 1 series, is notable for its historical significance and collectible value among numismatists. Coins of this type are often sought after for their gold content, rarity, and aesthetic appeal.