More details are needed. Please post a new question with the coin's date. Also see if you can find a mint mark. It may be a small S, O, D, or CC depending on when the coin was minted.
$1370 to $15000 depending upon the condition of the coin.
The only legal one, sold for $7,590,020.00 in July of 2002
Being that it's a copy, it's not worth much of anything.
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$1,320.00-$1,520.00 are current retail values for this coin in circulated condition
it is worth 70.00
2009 50 dollar gold piece 1oz worth money value
This is a high value coin with retail prices starting at $10,000.00 to more than $80,000.00 for circulated examples.
These coins weighed 33.1 grams when new, and are 90% gold.
The high price of gold means that your coin is worth more for its metal content than as a collectible. At current prices it would retail for about $500 regardless of mint mark.
About $35,000
none of these where made