Morgan Dollars are a type of silver coin minted in the United States from 1878 to 1904 and again in 1921. They feature a portrayal of Liberty on the obverse and an eagle with a shield on the reverse. The coins contain 90% silver and 10% copper, making them highly sought after by collectors for their historical significance and intrinsic metal value. The face value of a Morgan Dollar is one dollar, but they often command much higher prices in the collectible market, particularly for rare dates and mint marks.