yes their are called bullion
http://blackspanielgallery.8m.com/ has some
Silver is used in coins!
Coins struck for circulation in the US today have no silver in them.
Silver Eagle coins were first minted in 1986 and are still in production today.
The US never made any silver 1 cent coins.
The coin is 90% silver not solid silver. With uncirculated coins at $1.50 to $3.00 retail most circulated coins are bullion value only. About $1.25 as of today.
Not for general circulation as the metal is far more valuable the the face value of coins being minted, however silver may be added to very special commemorative coins.
That's kind of a broad question. The best antique coins might be considered the rarest of coins and in that case the older the better. Coins from the medieval times or even ancient Greece might be considered the best.
The 1922 Peace dollars are the highest mintage, most common of the series. If the coins show any wear, they are only valued for the silver at about $25.00 as of today.
90% silver quarters, half dollars and dimes were produced until 1964. From 1965-1970 half dollars have been 40% silver while dimes/quarters contained no silver. From 1971-present no silver coins have been minted for circulation. Today the US mints various collector coins in silver, but none for general circulation.
U.S. quarters dated from 1943-1964 are 90% silver. These are common coins that are mostly valued for the silver, about $3.51 each as of today. The 1965 to 1971 are clad coins that are only face value.
If you mean a 1988 Silver Eagle only Proof and bullion coins were struck in that year. From 1986 to 1992, proof Silver Eagle coins were minted at San Francisco and these coins bear the "S" mintmark and have a current retail value of $40.00. Bullion Silver Eagle coins dated 1988 were also struck at San Francisco but do not have mintmarks, the value of these coins depends on the spot price of silver at time of sale. As of today 3-27-11 it's about $37.32
If you mean a 1988 Silver Eagle, only Proof and bullion coins were struck in that year. From 1986 to 1992, proof Silver Eagle coins were minted at San Francisco and these coins bear the "S" mintmark and have a current retail value of $20.00. Bullion Silver Eagle coins dated 1988 were also struck at San Francisco but do not have mintmarks, the value of these coins depends on the spot price of silver at time of sale. As of today it's about $18.30.