To set things straight, it's "two" heads rather than "tow" heads and the coin is a half dollar rather than a silver dollar.
What you have is a novelty item called a magician's coin made by cutting apart 2 genuine coins and swapping sides. It's not a mint product and it's not an error, but the good news is that as of 02/2011 it has at least $8 to $10 worth of silver in it.
There were no silver dollars issued by the US Mint in 1964.
80% or 0.36169 ounce's.
80% or 0.36169 ounce's.
1964 was the last year for silver quarters.
The actual amount of pure silver is .36169 of an ounce.
The coin is only 40% silver and has a value of $2.73 only the 1964 Kennedy half dollar was 90% silver.
Sorry, no circulating US $1 coins were struck in 1964 at any US Mint. The coin is a Half Dollar with a value of about $13.00 for the silver as of 07/2011.
5-5-11>> If you mean a real silver dollar made in 1935 or BEFORE, as of today they are worth $29.00 just for the silver.
If it's 1964 or earlier, it's 90% silver. 1965-70 are 40% silver. 1971-present have no silver.
7-1-11>>> Sorry, no US $1 coins were struck in 1964 at any US Mint. The coin is a Half Dollar with a value of about $12.00 just for the silver.
No such coin exists that has been released for circulation. While some 1964 (D) silver (peace) dollars were minted, the all of them were melted shortly after being struck. There is however a Kennedy HALF dollar that is worth about $12.25 because it is silver dated 1964.
1964 Kennedy halves are the most common 90% silver half dollars. Most are valued just for the silver, about $12.00.