The coin in question is a Seated Liberty Dime, minted in 1872, and it represents a significant piece of American numismatic history. Designed by eminent engraver James Barton Longacre, this particular coin is notable for its elegant portrayal of Liberty seated gracefully, her left hand resting on a shield and a liberty cap in her right hand. This specific example is a proof coin, which indicates it was struck with higher precision and quality than regular circulation coins. With a limited mintage of only 950 pieces, this coin is particularly sought after by collectors. Its composition consists of 90% silver and 10% copper, giving it a weight of 2.48 grams and a diameter of 17.9 mm. The edge of the coin is reeded, a common feature in many coins that helps prevent counterfeiting by making it difficult to shave off material without detection. This dime does not bear a mint mark, which typically denotes where the coin was produced; however, it stands out due to its proof status. Overall, this 1872 Seated Liberty Dime is not just a monetary unit valued at 10 cents; it is a piece of artistry and history that reflects the values and craftsmanship of its time. Collectors highly prize such coins for their rarity and historical significance, making it a valuable and cherished addition to any collection.