Look on the back of the coin to see if there's a small mint mark letter below the eagle. It may be blank or there may be an O.
Numismedia lists the following approximate retail values as of 02/2014:
No mint mark (Philadelphia):
Very worn condition - $32
Moderately worn - $58
Slightly worn - $84
Almost no wear - $323
Uncirculated - $640 to $40,300 depending on quality
"O" mint mark (New Orleans):
Very worn - $33
Moderately worn - $60
Slightly worn - $106
Almost no wear - $356
Uncirculated - $690 to $72,150
DISCLAIMER: The retail values quoted are the best available as of the date shown, but may vary significantly due to changes in the precious metals market. Also the wholesale (buying) price of a coin will be less than the selling (retail) price. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
50$
Value is for the silver about $2.50
The US didn't strike any half dollars in 1804.
50 cents.
50 cents.
50$
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
About $4-5
50 cents.
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.
The value of a US 1964 half dollar in circulated condition is around $10. in uncirculated condition they are worth around $16.
50 cents.