The fabled 1804 dollar is arguably the most valuable coin in this series. However, in reality none were struck in 1804! You can see pictures and read a bit at the following link.
The coin is a 40% silver Kennedy half dollar most are valued only for the silver, about $6.00
The 1963-D Franklin half dollar is the highest mintage of the series, most are valued for the silver at about $6.00.
1922 is the most common date for Peace dollars, most are valued only for the silver about $30.00-$37.00
It's a half dollar not a dollar. The coin is very common, most are only valued for the silver, about $12.00
1965-1970 Kennedy halves are only 40% silver. Most are valued for just the silver, about $4.50.
So many were made most are valued at the silver content only so about a dollar
5-16-11>> 1922 is the most common date for Peace dollars, most are valued only for the silver about $37.00-$40.00
A 1964 US dime is so common most are valued only for the silver at about a dollar.
The 1962 Franklin half dollar is one of the highest mintage of the series, most are valued for the silver at about $11.00.
1965-1970 Kennedy halves are only 40% silver. Most are valued for just the silver, about $4.50.
1964 Kennedy halves are the most common 90% silver half dollars. Most are valued just for the silver, about $12.00.
Each Peace dollar contains 0.77344 troy ounces of silver and is valued at $17.26 when silver is at $22.36 per ounce.