Morgan dollars were minted from 1878 to 1904 and again in 1921.
Susan B. Anthony dollars were minted in 1980 and they're made of copper-nickel, not silver and have no added value if found in change.
The only dollar coins issued in 1980 were made of cupro-nickel, not silver. They're only worth face value.
It's a common Susan B. Anthony dollar coin with no silver in it just spend it
They contain absolutely no silver, and they're worth one dollar each.
It's not silver and regardless of mintmark the value is $1. Only a proof or uncirculated coins sold from the Mint will have more than face value.
1.00
Silver dollars do not have a hallmark. They often have mint marks, but not always. For example, a Morgan dollar with an O found on the bottom center of the side with the eagle was minted in New Orleans. Coins from the Philadelphia mint from before 1980 do not have a mint mark.
1 dollar
Not silver. All circulating half dollars struck since 1971 are made of copper-nickel and are only worth 50 cents.
Please check your item again and post a new, separate question. The last $10 silver certificates were dated 1953, and no US bills are dated 1980.
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.
1980 would make it a Susan B. Anthony dollar, and 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.