By the mint mark on the reverse of the coin, but silver dollar coins with no mint mark are made in Philadelphia
No mint mark indicates that it was made in Philadelphia.
See if it has an "S" mint mark. If it does then it's a mint proof and it will be silver clad. No "S", no silver.
The US mint never made cents out of silver. Most likely your coin has post-mint damage such as silver or chrome plating that makes your coin appear silver.
The "S" Mintmark means it was made at the San Francisco Mint
The U.S. Mint never made silver certificates because the Mint only strikes coins. Paper money is made by the Bureau of Engraving and Printing. The last silver certificates were printed in the early 1960s, but all were in the 1957 series.
No silver dimes were made after 1964. Starting in 1992 The Mint has made silver proof sets that do have 90% silver dimes, but they are not released into circulation.
The Eisenhower dollars made for everyday use do NOT have any silver in them regardless of date or mintmark. ONLY special collectors coins sold from the Mint were struck in 40% silver and were not released for circulation by the US Mint.
If it doesn't have a mint mark, that means it was made in Philadelphia.
If it has an S mint mark and a whitish color, it's made of copper and silver. If it has a D mint mark above the date or no mint mark (Phila.) it's actually made of copper and nickel. Please see the Related Question for more.
Nothing most likely. It is not an official mint product, it has next to no collector demand, unless it is made out of silver it is worthless. If it is made out of silver it is worth the price of the silver in the coin. Since non-mint products have no set composition, I cannot tell you what it is made out of and how much silver (if any) is in the coin.
Sorry! The US mint never made solid silver coins.