1.00
The only dollar coins issued in 1980 were made of cupro-nickel, not silver. They're only worth face value.
1 dollar
The 1989 American Silver Eagles were issued as Proof and Uncirculated. Today the proof coin has an average market value of $25.00, uncirculated is $23.00.
It is worth about $10 in good condition and about $20 in mint condition.
$1.00 in 1980 had the same buying power as $3.08 in 2016.
They contain absolutely no silver, and they're worth one dollar each.
Not silver. All circulating half dollars struck since 1971 are made of copper-nickel and are only worth 50 cents.
Unfortunately neither dates are silver. After 1967 the Canadian dollars were made of Nickel. They are worth around 1 - 4 dollars in any condition below MS65
It is worth around $25 in its original condition, having the original black "clamshell" case will help. This coin is made of 50% silver, meaning it has .357 of an ounce of silver.
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.
50 cents. It is a common date easily found in circulation and contains no silver.