With those dates, the coins are Silver Eagle bullion coins that are made from one ounce of silver and value is whatever the spot price of silver is at time of sale.
Are silver coins made by the US Mint. Quarters, Dimes, Half dollars and dollars struck for circulation dated 1964 and prior are 90% silver. Half dollars dated 1965-1970 are 40% silver. All US coins intended for circulation dated 1971 and later are not silver. The US has and does mint silver coins intended for collectors including the American Silver Eagle, since 1992 they have made a silver proof set and there have been many silver commemorative coins minted.
Just recently with the advent of bullion coins such as the American Silver Eagle. Coins intended for circulation were never 100% silver because silver is simply too soft of a metal for coinage. They were 90% silver in American coins until 1964 for dimes, quarters and half dollars, but other than bullion coins, no coins are made of 100% silver.
Some banks do sell American Silver Eagles, but they do not hold and sell silver coins that are turned in.
Silver dollars
U.S. dimes, quarters, and half dollars dated 1964 or earlier contain 90% silver. Then half dollars 1965-1970 are 40% silver. After that, no circulating coinage contains any silver.
None. Last year of use - $1 coins : 1935 Half dollars : 90% silver, 1964; 40% silver, 1969 Dimes and quarters : 1964 Nickels : 1942 to 1945 only. Cents : never.
All silver dollars (1794 to 1935) had various depictions of the American Eagle. Modern (non-silver) dollar coins have several different designs: Eisenhower, Anthony, and 2000-2008 Sacagawea dollars also have an eagle 2009 and later Sacagawea dollars will have various Native American designs. Presidential dollars have the Statue of Liberty.
40 percent silver coins are Kennedy Half dollars minted from 1965 through 1969. 1964 half dollars were 90% silver and coins dated 1971 and after have no silver. The 1970 half dollar was available only in mint sets
Chuck Zink has written: 'Correct grading of Morgan silver dollars' -- subject(s): Dollar, American (Coin), Grading, Silver coins
Dimes and quarters minted before 1965, half dollars minted before 1971, and silver dollars minted through 1935. Half-dimes also contain silver, but I wouldn't qualify them as common. Otherwise no circulating US coins contain silver.
The 1977 Eisenhower dollar is NOT silver, the last 40% silver collectors coins of the series were the bicentennial coins. None of the Eisenhower dollars struck for general circulation have any silver or are worth more than face value
No silver dollars were minted in 1969 in the United States. The only coins still minted in silver at time were Kennedy half dollars with 40% silver content.