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A 1979 Susan B. Anthony coin is worth 1 dollar (face value) still to this day unless in a condition that is UNC.
With a date of 1979 the coin has no silver in it. 1969 was the last 40% silver circulating US half dollar. The coin is worth 50 cents.
A US half dollar with a date of 1979 is a Kennedy half dollar not a liberty half dollar. The coin has no silver and is only face value.
Whether it's a US Anthony dollar or a Canadian "loonie", it's only worth face value.
It's worth one dollar.
This coin is often called a Susan B. Anthony dollar because it depicts that 19th-century advocate for womens' rights. Please see the question "What is the value of a 1979 Susan B. Anthony Dollar?"
value of 1972 u s a dollar coin
In 1979, the dollar coin issued by the US was the Susan B. Anthony, which has no silver content and no real collector's value, so is a "spender".
A 1979 US dollar coin is still worth one dollar.