The Merck coin has no numismatic value, it is a simple bullion coin.
In other words it is worth only what a buyer is prepared to pay over the current spot price of silver.
Having said that, the company history is interesting enough to merit an extra look, but this would more likely be reflected in the likelihood of sale than a willingness to pay a higher premium, and even that is debatable.
Expect to pay/sell for anywhere between £20-£23 depending on the appetite of the market.
That estimate is based on today's spot price and will fluctuate accordingly.
It also depends on whether you have the original display cases, certificates and individual white boxes for each coin.
As an example have a look at the related link to see an ebay auction that shows how they were originally issued.
The current spot price of silver is $31.71 per ounce, that's the value of this coin.
As of 2-14-10 silver is $15.51 per ounce so that's the value of the coin.
It varies depending on the rate of silver value. There is little to no collector value, so it is worth the bullion value of one ounce of silver.
It depends on the weight of your .999 pure silver coin. Currenrtly silver is $24.13 per ounce.
The value of a 1991 Garfield coin that is 1 ounce of fine silver will depend on the current market price of silver. You can check the current price of silver online or at a local coin dealer to determine the approximate value of the coin.
Spot price would be about it
The value is only for the silver in the coin as of today(11-21-09) silver is $18.51 per ounce. Also please note: The coin is a American Silver Eagle not a walking liberty silver dollar.
This is a bullion coin and it's value follows the market price of silver per ounce and as of 2-8-10 value is $15.13 per ounce, so that's the value of the coin.
One ounce of silver is about $32.00 at present. Most people will only want it for its silver value.
With silver over $30.00 per ounce the intrinsic value is about $11.00.
It's a 2000 one-ounce Silver Eagle bullion coin and as of today is about $18.00
$35.00