The H10c, or Liberty Seated Half Dime, is a type of silver coin that was minted in the United States from 1837 to 1891. The 1866 Philadelphia Mint issue is significant as it marks the first year of minting for this specific date. These coins feature an image of Liberty seated on a rock, symbolizing freedom and strength, and are sought after by collectors for their historical value and artistic design. The coin's composition typically consists of 90% silver and 10% copper, which contributes to its appeal in the numismatic market.

Item Denomination Series Year Mint
1866 H10c H10c Liberty Seated Half Dimes 1866 Philadelphia
1866 H10c H10c Liberty Seated Half Dimes 1866 Philadelphia