It depend on the country, date, denomination, condition, and mintmark. Post a new question with more information. See the related link below for more information.
No, for silver coins as the value of silver changes the value of the coin changes. The same is true for gold coins.
In the 1960's, the US stopped making silver coins because of the value of the metal. For example, a silver dime's silver value is worth $2 and a silver quarter is $6. Silver dollars are worth $30. The U.S. was wasting a lot of money in silver coins and the silver value was rapidly increasing, so they had to stop. Another reason would be that people took the coins, melted it and sold it to a cash-for-gold type company. Also, they would ship or smuggle them to foreign countries which is illegal.
With those dates, the coins are Silver Eagle bullion coins that are made from one ounce of silver and value is whatever the spot price of silver is at time of sale.
Pre-1965 silver coins are worth more for the silver than face value.
Foreign coins usually cannot be used in other countries. You can cash in foreign coins, but you usually only get a fraction of the value when you do.
Yes. Silver coins are worth more than face value.
The value of silver changes by the hour, so yes
Gold and silver coins
At minimum, they're worth the value of the silver.
If you are interested only in the silver value, not all Halfcrowns were made from pure silver and the post 1947 coins contained no silver at all. Whatever the going rate for silver is. If you are interested in the collector (numismatic) value of the coins, please provide year and condition of the coins.
There are no "silver" 1977 coins...they are copper-nickel Eisenhower coins and they are worth $1.00
There are no "silver" 1977 coins...they are copper-nickel Eisenhower coins and they are worth $1.00