From your description the coin is a Americain Silver Eagle that is made from one ounce of 99.9% pure silver, value as of today is about $19.00
Café Americain was created on 1993-09-18.
Café Americain ended on 1994-05-28.
I Know It
The value of a silver coin is always changing because the value of silver is always changing. See the related link below for a silver coin value calculator. This does not give the actual value of the coin but it does give the value of the metal used to make the coin. This is know as the melt value.
Chamber
canoe
the smallest value of a coin is a penny.
intrinsic value If a coin had value because of its metal content, you would refer to the "bullion value" or the "melt value" of the coin, as versus the "numismatic value" that a coin which was rare or in exceptional condition would have.
Metal value depends on the purity of the silver and the weight of the coin. Numismatic value depends on the condition of the coin.
americain
The value of a 1799 coin depends on the coin's denomination such as dime or quarter. It also depends on what country the coin came from, where it was minted and the condition of the coin. Without that information, it is impossible to state a value.