If your coin has a picture of Miss Liberty on the front and an eagle on the back, 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 or S.
If your coin has a picture of Christopher Columbus on it, please see the Related Question for details.
Numismedia lists the following approximate retail values as of 04/2010:
No mint mark (Philadelphia):
Very worn condition - $28
Moderately worn - $74
Slightly worn - $126
Almost no wear - $332
Uncirculated - $468 to $42,250 depending on quality
"O" mint mark (New Orleans):
Very worn condition - $312
Moderately worn - $510
Slightly worn - $570
Almost no wear - $750
Uncirculated - $930 to $117,000
"S" mint mark (San Francisco):
Very worn condition - $270
Moderately worn - $420
Slightly worn - $522
Almost no wear - $798
Uncirculated - $1,110 to $1,885
50$
Although this is the first commemorative US half dollar coin made, so many were released in to circulation, values run from $16.00 to $29.00 depending on the grade. Mint State coins sell around $33.00 to $38.00.
Value is for the silver about $2.50
The US didn't strike any half dollars in 1804.
50 cents.
The Barber Half Dollar was the only half dollar minted by the US Treasury from 1892 through 1915. This coin was followed by the Walking Liberty Half Dollar.
Susan B. Anthony never appeared on the US half dollar coins, only the dollar coins starting in 1979 to 1981 & 1999. The obverse design of your 1902 half dollar is that of "Miss Liberty" and is one of the Barber series (1892-1915) of half dollars. In average circulated condition the coin has a value of $14.00-$30.00
50$
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.
Although this is the first commemorative US half dollar coin made, so many were released in to circulation, values run from $16.00 to $29.00 depending on the grade. Mint State coins sell around $33.00 to $38.00.
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.