This is a 1898 Indian Head One Cent US coin with a double-die variety, featuring the error letters'AT, AM, CA' in close proximity. This bronze coin was minted in Philadelphia and is classified as a small cent. It is from the United States and is a business strike type, making it a valuable addition to any coin collection. The coin's golden brown color and unique features make it a sought-after piece for collectors interested in US small cents from the late 19th century.