The value of silver changes by the hour, so yes
No, for silver coins as the value of silver changes the value of the coin changes. The same is true for gold coins.
The value of silver had been rising over the years and finally it was becoming close to being worth more than the coins containing it. In order to avoid minting coins that would just be melted for the silver content, the Treasury department changed the composition of all silver coins.
Silver Australian coins were first issued in 1910 and were made from sterling silver which has a 92.5% silver content. This changed from 1946 onwards and the silver content was reduced to 50%. No Australian general circulation coin has had any silver content since 1966, except for the round 1966 50 cent coin. The silver content of the older predecimal coins possibly values the coins at more than face value, however, if the coins are in good condition, the collector value may be higher.
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.
Yes. Silver coins are worth more than face value.
Gold and silver coins
1837 was the year US silver coins changed to .900 silver & .100 copper, that caused a slight reduction of silver.
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