The U.S. has never used a G mint mark. It's possible you're seeing a somewhat blobby "S", from San Francisco.
As of 06/2008 retail prices for Barber halves are roughly:
No mint mark, D, or O : $12 in worn condition, $32 with moderate wear, $85 with slight wear.
With an S mint mark : $17 / $65 / $140
Most coins of this date show heavy wear and retail is $5.00-$7.00 better circulated grade are $20.00-$65.00 and coins with light wear run from $120.00-$168.00 Mint state coins start at $190.00
Assuming the coin is circulated, the 1908-O Barber Half dollar is a fairly better date of the series. For an accurate assessment of value the coin needs to be seen and graded. Most coins show a lot of wear. In general retail values for low grade coins are $13.00-$40.00, better grade are $100.00-$180.00 and coins showing almost no wear run from $300.00-$440.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer.
Assuming the coin is circulated, the 1908-O Barber Quarter is a more common New Orleans Mint issue coin. For an accurate assessment of value the coin needs to be seen and graded. In general retail values for low grade coins are $10.00-$25.00, better grade are $30.00-$75.00 and coins showing almost no wear run from $1000.00-$190.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer
$20-00 in f-12 condition
About $6, depending on condition.
half a dollar
Value runs from $185.00 to $250.00 in circulated condition.
The Philippines half dollar coin was minted from 1903 to 1906 and contains about 0.3858 troy ounces of silver. Its value depends on factors like condition, rarity, and demand, but as of now, it is generally worth more than its face value due to the silver content. You may want to consult with a coin dealer or online marketplace to get a current valuation.
A 1969-S proof half dollar - aka - Kennedy Half Dollar is worth: $7.00.
Kennedy is on the HALF dollar. A 1994 half is worth 50 cents.
It depends on the year and condition, but it's worth at least half a dollar.
a half hundred dollar bill is worth $50
HALF a dollar - $0.50
A half dollar.
The 1966 Kennedy half dollar is 40% silver and worth about $5.00.
If you mean a 1998 Kennedy half dollar, the coin has no silver in it and is worth face value.
About one dollar.