I have a 1877 half dollar how much is it worth?

Assuming the coin is circulated and has no mintmark, the 1877 Liberty Seated Half dollar is a high mintage common coin. For an accurate assessment of value the coin needs to be seen and graded. Most coins of this type have seen heavy use and show a lot of wear. In general retail values for low grade coins are $28.00-$47.00, better grade are $59.00-$94.00 and coins showing almost no wear run from $186.00-$390.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched or have been cleaned have far less value if any to a collector or dealer