A "one dollar" coin has the value of one dollar!
One dollar.
The FACE VALUE is One Dollar.
One dollar.
One dollar
Such a coin does not exist. The Australian One Dollar coin was first issued in 1984.
One dollar.
One dollar.
if it's not a Proof coin value is one dollar.
It's a common coin, still worth one dollar.
It's worth one dollar.
It's worth exactly one dollar in Canada.
The James Garfield dollar coin was minted in 2011, and is worth exactly one dollar.
Without further details, the best possible answer is that it's worth one dollar.
The Buchanan dollar was minted in 2010, and is worth exactly one dollar.
It's still worth one dollar.
Unless it is a "proof" coin (actual silver), it is worth one dollar.