What is the most valuable year for Liberty Bell half dollar?

The most valuable year for the Liberty Bell half dollar is 1964. This coin was minted during a special ceremony held at Independence Hall in Philadelphia, Pennsylvania, to commemorate the 200th anniversary of the signing of the Declaration of Independence. To mark the occasion, half dollar coins produced that year bear a special "1776-1976" double date on their reverse. Only two million proof examples were struck in 1964, making it the lowest mintage of any Liberty Bell half dollar. This unique coin is highly sought after by collectors, and can fetch upwards of thousands of dollars in well-preserved condition.