The coin in question is a Liberty Head Quarter Eagle, valued at $2.50, which was minted in the United States in the year 1840. This coin is crafted from gold, weighing approximately 4.18 grams, and has a diameter of 18 millimeters. It does not carry a mint mark, indicating that the specific mint where it was produced remains unknown. The Liberty Head design is characteristic of this series, which features a depiction of Liberty wearing a headband inscribed with the word "LIBERTY." The reverse typically showcases an eagle with outstretched wings, emblematic of strength and freedom. With a relatively low mintage of only 12,822 pieces, this particular Quarter Eagle is considered to be a rare collectible. Due to its historical significance and the popularity of gold coins, particularly those from the Liberty Head series, the 1840 Liberty Head Quarter Eagle holds considerable interest among numismatists and investors alike. Its status as a gold coin, combined with its vintage, contributes to its allure and potential value in the market.