No such US coin exists. The US has never made a 2 dollar coin. Please post a new question including the country of origin.
It is worth 25 cents, or one quarter of one dollar. 1966 is not old enough for the coin to have gotten valuable.
What you presumably have is a James Buchanan presidential dollar coin. It was minted in 2010 and is worth one dollar.
This coin is 40% silver. Too bad it is not from 64 or earlier, as those were 90% silver. It is worth a dollar or two.
The bicentennial dollar coin is still worth one dollar.
The 1966 Kennedy half dollar is 40% silver and worth about $5.00.
It is worth 25 cents, or one quarter of one dollar. 1966 is not old enough for the coin to have gotten valuable.
Less than one dollar
What you presumably have is a James Buchanan presidential dollar coin. It was minted in 2010 and is worth one dollar.
This coin is 40% silver. Too bad it is not from 64 or earlier, as those were 90% silver. It is worth a dollar or two.
The bicentennial dollar coin is still worth one dollar.
The bicentennial dollar coin is still worth one dollar.
The name is Sacagawea, and the coin is worth one dollar.
The Andrew Johnson dollar coin is worth exactly one dollar.
The 1966 Kennedy half dollar is 40% silver and worth about $5.00.
One dollar.
The coin is worth only a dollar.
It's worth one dollar.