Look on the back of the coin near the arrowheads to see if there's a small mint mark letter. It may be blank or there may be a D or S.
Numismedia lists the following approximate retail values as of 01/2011:
No mint mark (Philadelphia):
Very worn condition - $790
Moderately worn - $820
Slightly worn - $840
Almost no wear - $872
Uncirculated - $1,010 to $42,250 depending on quality
"D" mint mark (Denver):
Very worn - $790
Moderately worn - $890
Slightly worn - $940
Almost no wear - $2,216
Uncirculated - $8,130 to $156,250
"S" mint mark (San Francisco):
Very worn - $790
Moderately worn - $890
Slightly worn - $930
Almost no wear - $1,034
Uncirculated - $1,340 to $46,150
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.
There isn't a flying eagle $2.50 gold piece. All coins of that denomination struck from 1908 to 1929 show an eagle with its wings folded and perched on a bundle of arrows. There's more information about 1911 quarter-eagles at the Related Question.
about 13.000 euro
It's NOT gold and just a dollar. The last year the US made a one dollar gold coin was 1889.
About $325, for its gold content.
1896S .999 fine gold
A US 1911 $5 gold coin is 90% gold & 10% copper which is 22Kt. gold.
Current value is $109.44
There isn't a flying eagle $2.50 gold piece. All coins of that denomination struck from 1908 to 1929 show an eagle with its wings folded and perched on a bundle of arrows. There's more information about 1911 quarter-eagles at the Related Question.
about 13.000 euro
As of today about $250.00
It's NOT gold and just a dollar. The last year the US made a one dollar gold coin was 1889.
About $325, for its gold content.
1896S .999 fine gold
Current retail value is $1,330.00-$1,500.00 for a circulated example.
2009 50 dollar gold piece 1oz worth money value
It's worth exactly one dollar (and it's made of brass, not gold).
A date is needed for an accurate evaluation