The Kennedy halves released into circulation from 1971 to date have no silver and are face value.
If the coin is not in this date range, post new question
The US didn't strike any half dollars in 1804.
If it shows any wear at all the value is about $6.00 just for the silver. All Franklin half dollars (1948-1963) are considered common.
All circulated half dollars dated 1971 and later are worth face value only. They're made of copper-nickel and don't contain any silver.
Any U.S. half dollars dated 1971 and found in circulation are only worth 50 cents.
Most 1943 Walking Liberty half dollars show heavy wear and retail value is $12.00 regardless of any mintmark.
In 1943 half dollars were made of silver not gold. Yours is only gold plated. The value is still about $9 for the silver it contains. The gold plating does not add any value and in some cases can destroy any value you have.
1952 Franklin half dollars are not rare or even scarce, if the coin has any wear at all value is just for the silver about $12.00.
The US did not mint any half dollars dated 1800.
Franklin half dollars (1948-1963) are not rare or even scarce so if the coin has any wear at all, value is just for the silver about $11.00.
None of the Franklin Half dollars are rare or scarce, if the coin shows any wear the value is for the silver, about $10.00
3-27-11>>> 1960 Franklin half dollars are not rare or even scarce, if the coin has any wear at all value is just for the silver about $12.00.
Franklin half dollars are not rare or even scarce so if the coin has any wear at all, as of 8-27-11, value is just for the silver about $15.00.