What is the value of a 1840 us one dollar coin?

Assuming the coin is circulated, the 1840 Seated Liberty dollar is the first year issue for this series of sliver dollars. For an accurate assessment of value the coin needs to be seen and graded. In general, retail values for low grade coins are $260.00-$375.00, better grade are $450.00-$800.00 and coins showing almost no wear run from $1,000.00-$2,400.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer.