This is the only mint state example of the B-22, B-722 variety, making it the rarest of all 1797 silver dollars. Of all the 1797 silver dollars, it's estimated that 150 to 200 examples survive ...

Though many aren’t worth more than their face value, older half dollars often hold value due to the silver in their composition ... millions of dollars. The 1797 draped bust half dollar coin ...