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It's not an official US coin. The only $1 coins made in 1979 were small copper-nickel dollars depicting Susan B. Anthony. You may have a privately-made commemorative or something similar but without more information it's not possible to provide an evaluation.
Please post a new question with more information including the coin's size, any wording on it, etc.
What else can I help you with?
How much is a Lyndon B. Johnson portrait worth?
How much is a portrait of Lyndon B. Johnson worth?
What is a Andrew Johnson silver dollar worth?
Post new question with the date of the coin.
How much is a Andrew Johnson coin worth?
The Andrew Johnson dollar coin is worth exactly one dollar.
What is a 1977 Eisenhower silver dollar worth?
There's no silver in it, and it's worth one dollar.
1924 silver dollar?
how much is a 1924 silver dollar worth
1896 silver dollar?
1896 silver dollar is worth how much?
What is a 1992 silver dollar worth?
a dollar
What is 1959 a silver dollar worth?
A dollar
How much is a silver dollar proof worth?
It depends greatly on the year, early silver dollar proof dollars can be worth several thousand dollars, modern silver dollar proofs of common dates might be worth $20 or so for silver scrap.
How much for a 1799 silver dollar?
how much is a 1799 silver dollar worth
How much is a Washington silver dollar worth?
A Washington silver dollar, believe it or not.
What is a 1977 silver dollar worth?
One dollar.
