To find the price of a coin, it much be determined what country the currency is from. The American 50 dollar Gold Liberty Walking Eagle coin can be purchased for roughly $1550.00 American.
You are holding a Morgan Dollar. You could expect to get around $17 for this coin in typical circulated condition. Of course though, the better the condition, the more you can expect to get for it.
It is roughly worth $1,500 or more
Roughly half of the time, so about 350 times.
It may not be a genuine coin. There have been a lot of fantasy / novelty / "collectible" pieces issued with that design. Look for differences against a normal Morgan dollar. Also get a good scale and weigh the coin. If genuine it should come in at roughly 26.7 grams.
An 1857 Indian Head gold one dollar coin should weigh 1.672 grams.
Go to the bank and get a 1 dollar coin. Any large bank should have plenty of Sacajawea and Presidential $1 coins.
An 1891 dollar coin is a Morgan dollar, and therefore should weigh 26.73 grams. (This is the official weight when issued from the mint. If the coin was substantially circulated, it may weigh less due to wear.)
August 18, 2011 is the date of release for the Rutherford Hayes dollar coin. November 17, 2011 is the date for the James Garfield coin. You can expect new coins in the series towards the end of February and June next year.
If it is not a proof or a high-grade uncirculated coin, it is worth a dollar. You might have to pay a dealer $1.25-$1.50 for a circulated dollar coin, but don't expect him to buy yours. He already has bags full of them in the back room.
It is a coin worth one dollar.
If you mean a coin? The 1972 dollar coin is an Eisenhower dollar.
An uncirculated coin should have no wear whatsoever on it.