With the date of 1980 the coin is a Susan B. Anthony Dollar, not a liberty dollar and none contain any silver and most all are face value.
It's still worth one dollar.
He is asking about a 1980 LIBERTY Silver Eagle. It is a bullion coin that predates (and was privately minted) the American Silver Eagle (1986). The confusion comes from the reverse having the inscription “One Silver Eagle” which many know to be synonymous with “one silver Dollar“. It is not legal tender and is worth its weight in silver and any premium you can squeeze out of a collector.
If you mean the 1980 Susan B. Anthony dollar. It has no silver and it's just a dollar
One dollar, and it's not silver.
No, it does not.
The first Silver Eagle was struck in 1986 not 1980. If the coin is about the size of a quarter and dated 1980 it's a Susan B. Anthony dollar, has no silver and is face value.
The only dollar coins issued in 1980 were made of cupro-nickel, not silver. They're only worth face value.
It is not a Liberty half dollar, it is a Kennedy half dollar. Unless in a mint set they are worth 50 cents. They are in common circulation.
1980 would make it a Susan B. Anthony dollar, and it's still worth one dollar.