A denomination is needed. Post new question.
Average value of a circulated coin is $200.00 to $800.00. 184,618 were struck at the Philadelphia Mint. The coin is 90% silver.
In 1993 the Republic of Liberia issued a Nolan Ryan 10 dollar silver proof coin. The value of this coin is about $15.
This is not a U.S. Mint issued coin. It's a privately made 1 ounce silver bullion round that has no numismatic value. The value is only for the silver, about $20.00.
If you are asking about the silver one dollar coin. This coin was issued as Proof and Uncirculated, both types have the same average retail value of $24.00.
The New Zealand 1 cent coin was only issued as a bronze coin. If you have one that appears to be silver, it is because somebody plated it. Modified coins have no collector value.
It's not a coin, it's a privately-issued bullion piece. It might sell for about $18 at today's silver prices.
It is not a coin issued by the U.S. Mint and is worth only what a person is willing to pay for it.
You need to provide more information. Is it a bullion piece? If so, how much silver is in it? What country or company issued it?
Please post a new question with the coin's denomination and the country that issued it. That information is needed to provide even a ballpark answer.
July 13, 2009 The Graduation coin No. M009 is struck in .999 silver. Since it is not issued by the US Mint it would have no monetary value but being 1 oz of .999 silver would give it a bullion value of $12.76.
The value of an 1842 U.S. silver dollar can vary significantly based on its condition, mint mark, and market demand. Generally, prices for this coin can range from a few hundred to several thousand dollars. Coins in better condition or with rarer mint marks tend to fetch higher prices. For an accurate appraisal, it's best to consult a reputable coin dealer or reference a coin pricing guide.
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.