From 1965 to 1969 US half dollars were struck in "debased" silver. The outer layer is 80% silver bonded to a core that's mostly copper, for an overall content of about 40%.
Unless the coin is in uncirculated condition or is from a so-called Special Mint Set, it's basically worth its metal content, about $2.75 to $3.00 as of 01/2010.
Note that from 1965 to 1967, US Coins didn't have mint marks and proof sets weren't made so these details don't apply to a 1966 half dollar.
1970 halves were also made of 40% silver but were only sold in special collectors' sets.
All circulation-strike halves dated 1971 and later don't contain any silver at all. They're made of copper-nickel like dimes and quarters. Any that you find in change are only worth 50 cents, regardless of many myths and urban legends to the contrary.
The value of a 1966 Canadian silver half dollar is about 8.50 US dollars. In the case of the rare small bead variety, the value is between 1,000 and 2,000 US dollars.
Kennedy half dollars dated from 1965 to 1970are only40% silver. A 1966 is not rare, most are only valued for the silver about $5.
8-24-11>>> The US struck the last silver dollar in 1935. With a date of 1966, it's a HALF dollar that's 40% silver. As of today the value is about $6.00
Kennedy half dollars minted 1965-1970 contain 40% silver and are currently worth just under $5.
A US half dollar with a date of 1979 is a Kennedy half dollar not a liberty half dollar. The coin has no silver and is only face value.
It has a metal value of about $10.
Value is for the silver about $2.50
a half dollar
The US didn't strike any half dollars in 1804.
A U.S. half dollar dated 1953 or 1952 is a Franklin half dollar. If it shows any wear, the value is only for the silver, about $10.00. The coins are very common.
A US half dollar with a date of 1983 is a Kennedy half dollar not a liberty half dollar.The coin has no silver and most are only face value.
All US 1966 half dollars are 40% silver, containing about $3.32 worth of silver at the time of writing.
The value of a US 1964 half dollar in circulated condition is around $10. in uncirculated condition they are worth around $16.
The Franklin half dollar was produced between 1948 and 1963. Please check your coin again. For the value of a 1937 LIBERTY half dollar, see the answer on WikiAnswers for the question "What is the value of a 1937 US half dollar?"
There weren't any printed with that date.
You have a Franklin half dollar - a 1957 proof coin is worth around $25.00.
A US Kennedy half dollar dated 1969 is only 40% silver with a value of about $2.00.
If the coin is a US Kennedy half dollar dated 1974 it has no silver in it and is face value.
The U.S. half dollar has never been made of gold. What you probably have is a gold-plated 1979 half-dollar. It's not really worth much above face value.
All US half dollars from 1964 to date have Kennedy on them, your 1995 half dollar is face value.
Look at the back of the coin for "HALF DOLLAR" no US dollar coins were struck after 1935.