Unless it's in brand-new uncirculated condition, face value only.
The value of a 1976 Canadian half dollar is determined its scarcity and condition of the coin. In good condition this coin is worth about 19 dollars.
If the coin is a US Kennedy half dollar dated 1974 it has no silver in it and is face value.
A 1964 Canadian half-dollar has a value of approximately $12 Canadian dollars. This value is dependent on the current silver market.
50 cents
5 bucks
Please post a new question with the coin's date.
The value of an 1896 Canadian half dollar depends on its condition. For example, such a coin in good condition is worth around 11.79 US dollars while an uncirculated coin has a value of more than 500 US dollars.
50 cents each, unless they're uncirculated. Neither coin contains any silver. The Canadian half is nickel, the U.S. half is nickel and copper.
It's still worth exactly 50 cents.
All US half dollars dated 1974 were struck in copper-nickel. They have no added value, so feel free to spend it.
There is no silver in the Canadian half dollar dated after 1967. If you have older coins (lucky you), the content is as follows: 1870 - 1919 92.5% silver 7.5% copper 1920 - 1967 80% silver 20% copper
Unless it's uncirculated, 50¢
Liberty half dollars were made up till 1947. Your coin is called a Kennedy half dollar and is only worth 50 cents.