There are several varieties of 1806 draped bust half. Identification is difficult and should be referred to a professional grader or appraiser.
Numismedia lists the following approximate retail values as of 03/2010:
Normal date:
Very worn condition - $198
Moderately worn - $390
Slightly worn - $750
Almost no wear - $5,524
Uncirculated - $10,560 to $99,380 depending on quality
1806/5 overdate:
Very worn condition - $240
Moderately worn - $480
Slightly worn - $810
Almost no wear - $6,214
Uncirculated - $10,690 to $35,940
1806 overdate with the second 6 inverted:
Very worn condition - $270
Moderately worn - $930
Slightly worn - $1,650
Almost no wear - $9,782
Uncirculated - $28,130 to $68,750
Knob 6 and large stars:
Very worn condition - $210
Moderately worn - $510
Slightly worn - $930
Almost no wear - $6,040
Uncirculated - $10,560 to $73,130
Knob 6 with a claw, no stems:
Very worn condition - $71,880
Moderately worn - $110,630
Slightly worn - $118,130
Almost no wear - $131,250
50$
Value is for the silver about $2.50
The US didn't strike any half dollars in 1804.
No US dollars were struck in 1806, check the coin again.
50 cents.
50$
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.
No US dollars were struck in 1806, check the coin again.
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.